

Tails is a bit overkill, even for this. It’s not just privacy focused, it’s for the same people who need to use TOR (Tails even routes all traffic through TOR by default IIRC, no?), i.e. those who are sharing classified government intel or running large darknet drug markets. Unless OP is that paranoid, they can probably start off with a basic Debian or something, which is already leagues ahead of Windows in terms of privacy.
Yes. But they get a free AC unit that could be spreading black mold spores through the air, so maybe not as good as it sounds.