Postman not starting - stuck on splash screen 'Preparing your workspaces'

Ask the Experts and Postman Tips
3

It seems that switching back to 8.12.5 helps:

$ flatpak install com.getpostman.Postman
$ flatpak remote-info --log flathub com.getpostman.Postman

Commit: 2e682ac240bf789834f69a511a7adab7412f1ca59ca4eced5778f4cafc3232a2
       Subject: Update Postman.tar.gz to 8.12.5 (6b8cfd07)
       Date: 2021-11-17 16:47:32 +0000

$ flatpak update --commit=2e682ac240bf789834f69a511a7adab7412f1ca59ca4eced5778f4cafc3232a2 com.getpostman.Postman