29+%if 0%{?usrmerged}
30+# make sure we have post-usrmerge filesystem package - tumbleweed started to set version recently
31+Conflicts:      filesystem < 84
32+# this is the tumbleweed snapshot that introduced GCC 11 and supposedly usrmerge
33+Requires:       suse-release > 20210602
34+%endif

31+Conflicts: filesystem < 84 -> this is anything not TW, irrespective on 'whenever' (84.87 are ascii codes for T and W)

The dep on suse-release has no real meaning: the release package can be updated without any relevance, no change to the system (if users simply want to force things)

For what you want, I think we are better off to:

• introduce a 'Provides: fs_usrmerged' into filesystem
• have kernel `Conflicts: (filesystem without fs_usrmerged)

That sounds like more in line with what the kernel actually tries to achieve here

@lnussel - thoughts?