Bug Unity Hub fails to login on Arch Linux

Since one version update (I can't remember which was the last version I used that still worked, but it got updated by the package manager and I hadn't used it for a while) I was suddenly Logged out on Unity Hub and I was not able to log in anymore.
Every press of the sign in button opens a new browser tab in which I select my username and log in which brings Unity Hub back in to foreground still asking me to log in.

I even went so far to delete the folder with the settings, copy over the settings from the old versions folder to the new versions folder and even reinstalling to no avail,...

I tried the tech support if they maybe have any suggestions, but as Arch is unofficial support they were not helping a lot.

 

Hi...

Just double-click on the Unity Hub shortcut in the launcher, enter your credentials and you should be good to go.
Hey, I'm having trouble logging into unity hub using arch linux (I am using cinnamon desktop environment). Whenever I click on unity hub, it opens another tab in my browser which asks me to sign in with my credentials and then it redirects me to the unity hub but it doesn't load anything. It just shows empty-grey background. Even after deleting everything from the folder of settings and reinstalling, it's same problem. Do you have any idea to solve this?

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which launcher you're talking about?
If I open the applications menu on my DE and then go under Development and just try to double click on Unity Hub it immediatly launches on the first click presenting me the window with the login screen that opens a browser tab to log in...