Confirmed. I just applied the latest update (22621.1344) and now attempting to roll back Explorer causes it to go into a reload loop.
I just checked StartAllBack and it still works fine for providing the Explorer 10 ribbon with build 22621.1344. And selecting the Windows 10 ribbon (or Windows 7 style command bar) still eliminates the folder type setting bugs in Windows 11 File Explorer. So, that's good news.
Explorer Patcher (released version) is not compatible. Reload loop occurred.
I really think it's worth paying for StartAllBack.