I opened my onedrive app on my phone but I can now only see photo files, there is no obvious way to switch to see my regular files and folders

thank you .. cant believe I have been living with this like that for 2 months

YES. This is the solution. "Photo Files" at top center. Click on the files and presto, the document folder menu appears!

That is interesting but I don't think it's a good setup from MS.

Again it's confusing for no good reason.
What could have been wrong with having a permanent choice that shows 'Select Pictures or Files' (I can't even think why Pictures should have a special selection. )

And if it has to be, why not showing "Empty''? If either has no content. If it can detect that it is empty it should also be able to tell you as well !

If we are looking for something in our PC it's up to us to look for it. Why in the cloud it's different? So if there is something, whatever it is it should be available without cryptic setup...KISS!

New Edit: I did not realise there were so many replies for this thread! Now I can see 8 'pages' of it. When I first followed it a couple of days ago it only has 2 or three participants.... So the gist of it is Very poor design and testified by most. Yes a $Trillon industry that is hard of hearing and at time incompetent!

Thank you very much for this help.

Max