Everyone should use what works best for them, not what someone else does.

That said, several years ago when I was just getting into Linux I purchased
several KingWin racks and trays,
kingwin.com/.../kf_21_ipf.asp
The original HD has Win2K only and is in one tray. Another tray has a HD with
only Ubuntu on it.
I don't have to go through the BIOS setup. the swapped HD works fine even though
it is from a different manufacture and a different size.
At first I used Win quite a bit. Ubuntu was mostly for playing with and
learning. Now days I very seldomly use Win but it is there just in case. When MS
quits supporting Win2K that will be the end of MS software for this boy.