Always wipe and do a fresh install. If you’re installing Linux, its unlikely that the refurbisher will have installed your flavour of Linux anyway. If you want to dual-boot with Windows, most business ThinkPads come with a Windows Pro licence - just download the ISO and install it fresh, then install Linux.
Refurbished ThinkPads are awesome!
Sent from my ThinkPad T580 (with both an internal and removable battery, I get 10+ hours of battery life)
Yes. ssh’s RSA encryption uses liblzm.