in my experience the client workflow heavily depends
on the browser used (Chrome > IE > Firefox (pre-Quantum)).
No doubt. Chrome is also usually fastest in my experience (but actually, I prefer Opera, for it is a Chrome engine withoout some of the Google data collection code, and with additional features and also additional performance improvements).
Automic also primarily tests on Chrome, as far as I have been told by unofficial channels.
However, my company doesn't allow Chrome (or Opera).
For exactly this reason I tried to get Automic to make a recommendation for Chrome in the documentation about a year ago, so I can convince my company to allow Chrome. But Automic could not get itself to make a recommendation. Thus, I expect this to work in Microsoft browsers reasonably well.
And we do NOT use Edge, but still IE11, that's a corporate policy, too. Automic also called Edge a "version" of Internet Explorer in at least one document, which is simply a false - Edge is a new product and NOT Internet Explorer. However, Automic claims IE11 is fully supported also.
This all means IE should work, and the whole issue with workflows is in my view simply a bug. If 99% of a web interface perform reasonably well, but one part brings down a PC with a small number of objects for no good reason, that's a bug.
I haven't tried 12.2 but hopefully will get a chance to do so soon. I will report if I get arround.
Cheers,
Carsten