Upstream bug https://github.com/systemd/systemd/issues/20224 sys-apps/systemd-249 <249.4 breaks the nofail option in fstab. Fixed in 249.4: https://github.com/systemd/systemd-stable/commit/efd98964fb9202451293043dcffb3898b176a7d0 Reproducible: Always
(Note that we may end up seeing a .5 for bug 811093)
.4 was added in https://github.com/gentoo/gentoo/commit/4b18e9ef46359107263f24a6e6d20e5548c147d3.