No. This is all false. The OP is talking about refurbished devices directly from Apple. You're not going to get a refurbished device from Apple that's tied to the previous owner. They also come with new parts installed to replace anything that didn't pass inspection. As far as I or anyone I've read about on these forums has experienced, Apple's refurb process is incredibly good.
Bought refurb directly from Apple and locked. MacRumors. Reddit. Apple forums. Take the time and you’ll find more.
https://forums.macrumors.com/threads/refurb-from-apple-is-activation-locked.2239303/
Apple sold me an iCloud locked MacBook Pro - Apple Community
Not sure why there’s this myth that MacBook refurbs are extra special and come with all new parts. There have also been multiple documented cases of Apple using salvaged logic boards with questionable quality.