I got a nextcloud instance that was running for almost 3 years but I was never happy with the performance. So I decided to break it down to multiple application. So I don't have everything on one giant application Starting with photos, I went with immich which works pretty well. I also split the authentication part and have now authentik as my IDP. Now Im looking for the file share/sync alternatives. I checked seafile which is ok but was not convinced, I like pydio which has Windows Linux and android support and a decent web interface, the problem that I believe it support oauth only with Enterprise version and not the community one (maybe I'm wrong but I couldn't find anything on that). Now my question is what are the alternatives to nextcloud for filesharing/Sync. It should support win/Linux and android and also compatible with authentik. Im also looking into some calendar and Todo-list alternatives (I just know Baikal and radicale) but more suggestions/feedbacks are appreciated.

Thx