

This is and was the current workaround. On my old phone I had to install an app for that because they decided that there is an up and down which didn’t allow for a 180° rotation.
When held upside down the buttons on the side are misaligned to where the fingers and the thumb are placed. Thus, the volume up-and-down buttons are swapped, which is rather unintuitive.
Before a smartphone holder for my car was handed down to me (I never bothered to buy one for myself) I placed my phone inside the cup holder located at where the shifter is. When the phone needed to be charged, it was not possible to have the phone oriented in the “normal” direction, as the phone would have stood on the charging cable resulting in damaging of the cable. For that reason I made use of the app that allowed me to rotate the phone, so that the charging port would have been on the upper side.
I have an old flatbed scanner that I occasionally use. I bought it in 2003 or 2004. For scanning I use an old 2010 Macbook Pro still running on MacOS X 10.6.8. The scanner software ist written for Power PC, and MacOS X is the last OS that can execute the software. The scanner still works perfectly fine. Some time ago I found out that there is third party software availiable that probably runs on recent macOS installations, but since I refuse to pay for it, I transfer the scanned documents with a thumb drive onto my M1 Macbook Pro. I tried to connect my recent Macbook Pro with my 2010 Macbook Pro via Bluetooth, but I couldn’t get them to transfer files between them, although they detect each other in the Bluetooth settings. I suspect that it is a compatibility issue, as there is a huge age gap between both operating systems (∼ 15 years)