Hello
I assume you click on the Work/School account in the app and that's when it prompts you for that?
Instead of clicking on the Work/School Account, after you click on the plus sign, click on PC instead.
Then for PC name, you can enter IP address or PC name, then for credentials, you can choose "Ask when required, and go ahead and put in your credentials". It shouldn't be limited to work or school account only. I tested on mine and it worked for me.