Obviously, everyone will recommend Nextcloud. And yes, it works. But it is heavy and can feel slow.

I then moved to OwnCloud, the original project behind Nextcloud, which I found significantly faster. After that, I switched to OpenCloud, which is closely related to OwnCloud. It is less intuitive to set up, but it is extremely lightweight and very fast. That is the one I recommend.

Depending on your use case, there are plenty of other options as well, such as Seafile, Filerun, Filestash, Copyparty, and others.

I've been self-hosting NextCloud and it is pretty good, a little bit slow sometimes and some problems hosting it in non 443 ports, but overral i am liking it

While lots of ppl will hate on Nextcloud, its pretty good. When you do the setup right, with cache and so on set up it's fast and serves its purpose not only as cloud storage but as a collaboration platform where you can edit files with other ppl and much more.

If you only want a simple Web App to up and download files there are probably other solutions for that.

I really like own cloud, it’s easy to configure and it does a good job. The web interface is nice and you can federate between instances making it easy to share data.

I really like Filen. They have an open source app on all operating systems, including Linux, which Proton Drive still does not support. They also recently added support for Rclone.

Mainly just Nextcloud. I have it setup pretty lean as most of it's capabilities is just massive overkill for my needs. I mostly just have it handling file, calendar and contact syncing as well as it's news reader.

I've largely ignored most of Proton's offerings as it feels like they are trying to become Google 2.0. I lived through that once, that was enough. When Proton started they were very much "Don't know who you are and don't want to". Now I'm not so sure what their ambitions are. Creepy vibes from them lately that remind me of Google.

A VPS with a wireguard-based VPN an syncthing seems nice.

rsync, rclone, copyparty (+NFS/SMB)

I think there are a couple for documents, crypt pad is one, and there is another that's like a french based company I can't remember the name of. Also murena.io I believe can offer an entire suite of cloud options.