What is the best Ubuntu/Musescore combination

I have been transcribing horn parts by ear for some new songs my band wants to add to the set list. After penciling them out on staff paper, I thought, “Oh, crap, I can’t even read this in pencil myself. How is another horn player going to use this?”
I remember using Musescore many years ago, so I headed that direction. I don’t have any kind of PC right now, but my wife had an old tower PC running Windows XP. She couldn’t remember her password, so last month I pried the hard disk out of it, took it to my old office where I worked before retiring. The IT guy there needed my advice on a few things that I knew, and he found an old PC there that we plugged my wife’s hard disk into and copied her photos and data over to a USB drive.
I didn’t recycle her old XP because I had in mind how I would use it. I got it out of the closet, and put the hard disk back in. I had an old version of Ubuntu Linux on an install CD, so I put it in the CD tray and booted the old PC up. Ubuntu installed in a few minutes, then I got the machine on line, and Ubuntu got upgraded to the newest version. I searched Ubuntu software and found the free Musescore 3.6.2 software, and it installed easily. All free software and OS. I thought I was good.

’ve been working on this for a while. My first install was from a Ubuntu 20.04 CD and Musescore 3.6.2 was offered in the Ubuntu app store. Everything installed and was running fine. I set up Dropbox, Thunderbird, email, there is a music player that I set up to play my favorite radio stations, there is a Office suite. It found my air printer and I printed out a bunch of scores. Then Ubuntu offered some upgrades to Ubuntu 20.04 and Musescore stopped working. I tried the upgrades to Ubuntu 22.04, the current version, but Musescore 3.6.2 wouldn’t run. I learned about AppImage files, and tried an AppImage of Musescore 4 on Ubuntu 22.04, but it didn’t run right, along with other stuff that didn’t work. Maybe that old PC is too old for Ubuntu 22.04. I learned how to make bootable USB drives to install Ubuntu 22.04 and 20.04, and tried some installs that avoided the upgrade steps. But I found the best combination was back to where I started, Ubuntu 20.04 and Musescore 3.6.2, even though Musescore is running with an (unstable) flag in the top banner.
Fortunately, all my Musescore work was backed up to Dropbox.