diff --git a/dev-qt/qtwebengine/qtwebengine-6.10.1.ebuild b/dev-qt/qtwebengine/qtwebengine-6.10.1.ebuild
index 06d5c973fa167..f46dc12c524bd 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.10.1.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.10.1.ebuild
@@ -254,11 +254,11 @@ src_configure() {
 			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
 		fi
 
-		# Built helpers segfault when using (at least) -march=armv8-a+pauth
-		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
-		# for simplicity. Override with USE=custom-cflags if wanted, please
-		# report if above -march works again so can cleanup.
-		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+		# Qt normally ignores users *FLAGS specifically for qtwebengine, and
+		# does not really support passing -march -- qt6-build.eclass has some
+		# checks to ensure working flags with amd64, but that does not exist
+		# for arm64 and can lead to problems (bug #920555,#920568,#970048)
+		use arm64 && filter-flags '-march=*' '-mcpu=*'
 	fi
 
 	# chromium passes this by default, but qtwebengine does not and it may
diff --git a/dev-qt/qtwebengine/qtwebengine-6.10.2.ebuild b/dev-qt/qtwebengine/qtwebengine-6.10.2.ebuild
index afb7684206a38..3be0d7ad33891 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.10.2.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.10.2.ebuild
@@ -256,11 +256,11 @@ src_configure() {
 			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
 		fi
 
-		# Built helpers segfault when using (at least) -march=armv8-a+pauth
-		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
-		# for simplicity. Override with USE=custom-cflags if wanted, please
-		# report if above -march works again so can cleanup.
-		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+		# Qt normally ignores users *FLAGS specifically for qtwebengine, and
+		# does not really support passing -march -- qt6-build.eclass has some
+		# checks to ensure working flags with amd64, but that does not exist
+		# for arm64 and can lead to problems (bug #920555,#920568,#970048)
+		use arm64 && filter-flags '-march=*' '-mcpu=*'
 	fi
 
 	# chromium passes this by default, but qtwebengine does not and it may
diff --git a/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild b/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
index 2a2a37b530bd6..a3d52b57afae4 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
@@ -255,11 +255,11 @@ src_configure() {
 			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
 		fi
 
-		# Built helpers segfault when using (at least) -march=armv8-a+pauth
-		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
-		# for simplicity. Override with USE=custom-cflags if wanted, please
-		# report if above -march works again so can cleanup.
-		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+		# Qt normally ignores users *FLAGS specifically for qtwebengine, and
+		# does not really support passing -march -- qt6-build.eclass has some
+		# checks to ensure working flags with amd64, but that does not exist
+		# for arm64 and can lead to problems (bug #920555,#920568,#970048)
+		use arm64 && filter-flags '-march=*' '-mcpu=*'
 	fi
 
 	# chromium passes this by default, but qtwebengine does not and it may
diff --git a/dev-qt/qtwebengine/qtwebengine-6.11.9999.ebuild b/dev-qt/qtwebengine/qtwebengine-6.11.9999.ebuild
index b10fa2819c460..3a7d262a96b98 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.11.9999.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.11.9999.ebuild
@@ -255,11 +255,11 @@ src_configure() {
 			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
 		fi
 
-		# Built helpers segfault when using (at least) -march=armv8-a+pauth
-		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
-		# for simplicity. Override with USE=custom-cflags if wanted, please
-		# report if above -march works again so can cleanup.
-		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+		# Qt normally ignores users *FLAGS specifically for qtwebengine, and
+		# does not really support passing -march -- qt6-build.eclass has some
+		# checks to ensure working flags with amd64, but that does not exist
+		# for arm64 and can lead to problems (bug #920555,#920568,#970048)
+		use arm64 && filter-flags '-march=*' '-mcpu=*'
 	fi
 
 	# chromium passes this by default, but qtwebengine does not and it may
diff --git a/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild b/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
index b7a8a5e6d1785..c92c23cc7d511 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
@@ -254,11 +254,11 @@ src_configure() {
 			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
 		fi
 
-		# Built helpers segfault when using (at least) -march=armv8-a+pauth
-		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
-		# for simplicity. Override with USE=custom-cflags if wanted, please
-		# report if above -march works again so can cleanup.
-		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+		# Qt normally ignores users *FLAGS specifically for qtwebengine, and
+		# does not really support passing -march -- qt6-build.eclass has some
+		# checks to ensure working flags with amd64, but that does not exist
+		# for arm64 and can lead to problems (bug #920555,#920568,#970048)
+		use arm64 && filter-flags '-march=*' '-mcpu=*'
 	fi
 
 	# chromium passes this by default, but qtwebengine does not and it may