Yeah, I also selfhosted it for years myself. But I was adding more and more services to my server and it became clear that if I would want to keep Nextcloud I'd need a server with more CPU and RAM because when Nextcloud was running it would after half a day deadlock the server with a load of 120 so I had to hard reboot it twice a day.
After replacing it with radicale and syncthing I was able to run Mastodon and Lemmy on the same server additionally.