After some time I wanted to use Element again and did some searching and found:
https://build.opensuse.org/package/show/home:jejb1:Element/element-desktop
Did add the repo and installed it, things work again.
That is element-desktop 1.12.10 from Feb this year, so reasonably up-to-date.
On using a private repo
Private repo are typically not recommended, see for instance here.