Looking for Cloud Storage Replacement, but I don't like NextCloud

I'm looking for something to replace cloud storage for myself and family. I've tried to use/like NextCloud but honestly I despise it. The UI/UX really bothers me, and administering it is a pain. It also just does way more that I want or need.

What I'm looking for:

• Supports a virtual/sync folder on Mac. Like iCloud does, it needs to create a local folder on a Mac. I personally just use SMB, but for family members that's not as easy (see next point).
• Accessible from the internet. I don't want to put my family members on the VPN, but I do have a central OAuth for other stuff so I want it to be secured with behind that.
• Doesn't need to have a web interface or phone app. If it integrates into the computer, it doesn't really need this. I can just use (FileBrowser)[https://filebrowser.org/]. It's mostly used for documents and the like, so desktop/laptop use is the most important.

Anyone use anything that fits this? Or anyone in general dislike NextCloud and use something else?

Edit: Maybe I can just setup webdav and use something like https://mountainduck.io/? Would be better to find something FOSS though, if possible.