Ya, I really like NextCloud and have been using it for quite a few years now. But, like many such solutions for getting your data off other people’s computers: it means you have to do a lot of work. I have a server running in my home and have to maintain all of the software on it myself. I also have a small Splunk instance setup which I use for log collection and analysis and check the dashboards at least once a day to watch for possible compromise. It’s certainly more work for me than just using Google’s cloud. But, it also means my data isn’t compromised by default.