If you’ve suffered (like me!) issues when trying to login into a Solid App with different Pod service providers, there’s a way that helps you be able to let you Log In again: Clear Browser Cache & Cookies.
There is no easy path to being logged in multiple times simultaneously that I am aware of. Solid-auth-client stores authorization tokens as cookies so it’s pretty unavoidable ATM.
Firefox has an official addon called Multi-Account Containers which could be helpful to use the same app with different profiles. I don’t know about chrome and other browsers, but maybe they have something similar.
@MitziLaszlo and @megoth I propose we create a new catergory “Tips and Tricks” where posts like this which provide practical solutions to common Solid problems can be gathered. Hopefully posts in this category would stick to specific coding solutions and not stray into general discussions. I’d be glad to help moderate if that would further this idea. This post by @alexcorvis84 could be a first example.