#elementaryOS and #GNOME devs are not in the business of forever supporting every conceivable MS Windows feature by default.
As there is a sandboxing-compatible (and Wayland-compatible) FreeDesktop API for background apps (tray icons or not) nowadays, apps that do not use it yet need to get on with the program.
I went ahead and reported https://github.com/nextcloud/desktop/issues/10162 for your NextCloud app case (I never had to use it, as I use GNOME Online Accounts' built-in NextCloud provider).







