I can’t see past returns in the mobile browsers Safari or Chrome on my iOS IPhone. The menu doesn’t show “tax home.” How do I access previous years tax returns?

Assuming you are in the correct account.

The "Tax Home" selection doesn't appear...UNTIL you start thru the initial pages of starting your 2022 tax return.

As you start thru several pages of the 2022 Q&A, the Tax Home selection will appear on the left side ....eventually.

..ohhh...and on a phone it may be in the dropdown hamburger stack....eventually....but you still have to get a number of pages thru the initial 2022 Q&A