Have you thought about designing the folder structure a little more complex, like Apple Notes app's left sidebar on MacOS?
I'm using the Johnny.decimal method for my personal and work folder structure. I have 100+ folders. For example '31.06 incoming invoices'. I have the same folder structure for OneDrive for work files, iCloud Drive for personal files, MindNode for mindmaps and also Flow for sketches, notes, etc.
It would be super useful if I can add like subfolders (‘subCollections’) and have the option to open and close them. This way I can close work folder and open my personal for example.