The Gentoo maintainers finally threw in the towel on Chromium about a week ago.
Portage output / rationale
!!! All ebuilds that could satisfy "chromium" have been masked.
!!! One of the following masked packages is required to complete your request:
- www-client/chromium-151.0.7922.169-r1::gentoo (masked by: package.mask)
/var/db/repos/gentoo/profiles/package.mask:
# Sam James <sam@gentoo.org> (2026-09-24)
# Increasingly challenging to maintain with increased release cadence,
# upstream toolchain changes, and conflicts between trying to provide
# a consistent experience for Gentoo users (avoiding bundled where possible)
# vs. getting updates out in a timely manner. Many unfixed vulnerabilities.
#
# Keeping it in ::gentoo isn't a matter of just supplying an updated ebuild,
# but a commitment to keeping it up to date and finding a compromise between
# users' expectations (like various USE flags & not forcing all bundled
# components) and maintainability.
#
# Still supported packages include:
# www-client/google-chrome variants
# Other chromium-based browsers:
# www-client/microsoft-edge
# www-client/opera
# www-client/vivaldi
# qtwebengine-based browsers (uses chromium's engine):
# kde-apps/konqueror
# www-client/falkon
# www-client/qutebrowser
# Other browsers:
# www-client/firefox and www-client/firefox-bin
# www-client/seamonkey
#
# Removal on 2026-10-24. Bug #982204.
Bug mentioned: https://bugs.gentoo.org/982204