You used to be able to open an heic in the native windows 11 photo viewer and go to “save as” and resave it as a jpg, but they removed it. So I guess its deliberate.

I had no idea about 8marketplace. Thanks for sharing! Last time I booted up a Lumia, basically everything was inaccessible because of the dead store. I was a big fan of windows phone back in the day. I would love to go back to WP7 or 8 as a main phone if possible.