Thanks for sharing such detailed notes; interesting and helpful.

As an inveterate Windows user (I support it at work), I’m not surprised by the challenges at all. I hadn’t heard of Bazzite though, I’ll have to check it out.

I’m not familiar with pellet stoves, but would a converter work so you can reuse the old exhaust pipe in place?

https://www.homedepot.com/p/Master-Flow-7-in-to-4-in-Round-Reducer-R7X4/202191795