I’ve been rocking a Latitude 7370 for around 5 years now. Picked it up used in 2018 for $475. It has been a great machine. Works great under Fedora. 3200x1800 touch screen, 16GB ram. Swapped the m.2 SATA SSD for an NVMe drive. It’s not a super powerful machine, and the battery life could be better, but overall I really like it.
Same on a 7490. My favourite thing about it is that I was able to cheaply upgrade it to 64G memory! Plus it's fairly sturdy and cheap to replace if it ever does die on me. Very happy with it.
I have had a couple of minor Linux specific (I assume) issues, but nothing too hard to resolve.