In the new version, switching between folders after startup takes more clicks than the old version (three clicks instead of two - which I acknowledge is a bit trivial but, still, it’s a step backwards).

To replicate the old version experience, allow the Folders page to be a Start Page option.

To improve upon the old version, when in a folder, allow the name at the top to open a list of all folders - clicking a name goes to that folder. Still two clicks, but it doesn’t require moving back and forth between different pages (back to the Folders page, then forward to a different folder). Or…another solution that you all are way more qualified and creative than me to come up with!