upgrades have been working fine here, both linux and windows, for well over a decade.
only if a system is also being repurposed at the time of the 'upgrade', or if i'm changing the connection type of the boot drive (such as from sata to nvme, or switching an older system to ahci mode) do i install 'from scratch'.
there's a lot of stupid, ignorant assholes running small businesses all over the place that think they own their employees and can boss them 24/7. this could totally be a legit posting somewhere.
if you want me answering my phone 24/7, you're paying me 24/7--and providing the phone you want me to answer.
definitely keep windows on it to begin with. once you're fully settled-in on linux and haven't even looked at windows for at least a couple weeks, make one last backup... then nuke it or repurpose it.
they also rely on those big cities they hate so much to provide some of the funding for the services and infrastructure they no-doubt take for granted.
a shift of ~ 240k people from oregon to idaho would result in oregon going back down to 5 congressional districts, and idaho gaining one for three. so one electoral vote moves from a reliably-democratic state to a republican one. that one elector could very well swing a presidential election.
iirc, changes to state boundaries requires approval of both states and congress (and also the president, who would have to sign-off on the legislation passed there). oregon would never go for it--not entirely sure idaho would be on-board, either, even with the thought of gaining a congressional seat. providing state services and funding to that region would be a perpetual net-drain on idaho's economy.