Gentoo's Bugzilla –
Attachment 757637 Details for
Bug 828442www-client/chromium-97.0.4692.36: ../../third_party/icu/source/i18n/unicode/msgfmt.h:432:19: error: virtual function 'operator==' has a different return type ('UBool' (aka 'signed char')) than the function it overrides (which has return type 'bool')