Regarding sailfish, the port is certainly still in development and has not stalled. I use it as my daily driver with few issues.
The latest releases are available from the continuous integration build server at
https://gitlab.com/sailfishos-porters-ci/t5-ci/-/jobs
Regular users are advised to install the "testing" releases, as the other releases are from the devel branch. I try my hardest to not break the testing repository, but breakage may happen in the devel repository, and I wont give you sympathy if you are running that version 😉
The current releases of the devel ver