The Nextcloud desktop client allows you to keep one or more folders full of your photos, videos and documents synchronized with your server. Any file you add, modify or delete in the synced folders on your desktop or laptop will show up, change or disappear on the server and all other connected devices. Thanks to the client, you can work with your files even when you are not online!
Installed on new Mint 21.2 install without issue. Flatpak is convenient as it updates automatically, although generally a couple days behind the AppImage on nextcloud.org. Note must be manually added to "Startup Applications" after first install.
When I realized that the version in the software center was the actual version of the app, I installed it instead of the AppImage. Seems to work fine. I had to add the "Nextcloud Client" to the "start programmes" manually, though. Seems to work fine now! Therefore, I'll rate it 5 stars. I am using Linux Mint 21.1 (Vera) Cinnamon Edition.
I do like the app. But I always have issues with auto-start the app during startup. It never works. Even if I check the checkbox in the settings, to start during the boot.