Is it possible to have 2 client running on an system? I.e. if you have a private and a business nextcloud-installation on different servers.
Not really (ownCloud managed for test purposes to create a testpilot version but even then it was a bit hacky with the symbols).
But you can use one client to connect to different accounts at the same time.
Thx for your answer! That sounds great an should do what I want to