Unlikely. The maintainer was pushing updates more frequently and sooner than the original app. it'll be fine
Otherwise, look into cryptomator. A completely different approach, it makes use of your existing cloud storage accounts, but at least more private then using those directly. It probably requires internet access all the time a file is accessed, though, but check the docs to be sure.
I use Cryptomator on desktop and Android and while I think it is a slightly different use case than syncthing, it can probably cover a lot of similar uses. And yeah, on Android you don't actually have a local copy of all your stuff, you can just upload, download, or edit text files.