A new bug-fix update for the 1.10.x branch came out, specifically targeted for RHEL 8: https://github.com/flatpak/flatpak/releases/tag/1.10.8 Most interestingly, it includes some security fixes (bug 2180311) and addresses several regressions in 'flatpak history'. We are currently carrying flatpak-1.10.7 in RHEL 8. flatpak-1.10.8 has less than 20 commits on top of that -- all of them backported from newer branches that we are carrying in RHEL 9 and Fedora, and many of them are tests. So this should be pretty safe.
Merge request: https://gitlab.com/redhat/centos-stream/rpms/flatpak/-/merge_requests/17
Built flatpak-1.10.8-1.el8: https://kojihub.stream.rdu2.redhat.com/koji/taskinfo?taskID=2470293