Cutting ties with Adobe

I currently have an Adobe CC subscription that I would really like to end, so am looking for some advice or recommendations. I have been searching around but am struggling to find alternatives due to some fairly strict requirements.

What I am looking for is a Lightroom style app for Linux and Android that would sync to the cloud, or ideally sync to my personal cloud storage. I'm happy to pay a one off lifetime payment but would prefer to donate to a FOSS project if possible.

I have started to play around with Darktable and do know that you can use remote storage but the syncing seems a little clunky.

Any suggestions at all will be very much appreciated.