I suspect another problem with libreoffice versions in SLE repo (15.6) being more recent than those in repo-oss (16). In this case I’ll create a new topic.
A similar question asked in this topic where Malcolm provided a rationale for Leap 16.0 remaining on LibreOffice 25.2.5.2.
However, given that Leap 15.6 is receiving a newer LibreOffice 25.8.x through its SLE update repository, I think the specific version discrepancy you’re raising is worth reporting as a bug so the maintainers can clarify whether this is intentional.
I realise how important this is to some of our users.
To that end, in the next few weeks I’ll refactor the LibreOffice spec file,
which will make this effort much easier.
We have much to do to maintain LibreOffice on Tumbleweed, Leap and SUSE
Linux Enterprise.
A good chunk of that work, however, has to do with how the spec file is
written/organised.
After the changes I have in mind, maintaining multiple versions should be
relatively straightforward.