Snap isn't the best experience for Nextcloud in my experience, fine for a demo or a single user instance that isn't mission critical. Users who expect more out of it will often bump up against its limitations.
Anyone who wants to seriously use Nextcloud should look into the AIO docker containers or rolling the individual containers themselves. Nextcloud has expanded into a full groupware stack and it's expected you have an actual admin managing the system like with any real deployment of enterprise software
It includes most of the essential features, and I’d say it’s excellent for professional use. I’ve been running an instance for many years on a VPS for work collaboration, and it’s been perfect. It’s now hosted behind Cloudflare Tunnels, with group members whitelisted by email.
If you need more advanced or fancy/niche features, AIO might be a better though heavier fit (I run an instance of AIO at home, mostly for testing). Snap is lightweight and a bit opinionated (in reasonable ways in my view), and the documentation used to mention some of its limitations. In exchange, you get snappier, more robust installation.
Anyone who wants to seriously use Nextcloud should look into the AIO docker containers or rolling the individual containers themselves. Nextcloud has expanded into a full groupware stack and it's expected you have an actual admin managing the system like with any real deployment of enterprise software