I got a recent Precision at work, and it's OK re: Linux support. Even with an up-to-date Fedora install, the fingerprint reader and official Dell peripherals have given me some trouble. The support is good but not worth touting IMO.

But, it's better than it was! I had a highish-end XPS 13 from '18 that refused to ever sleep with the lid shut, despite my best efforts.

If Dell wants to get serious about this stuff, they need to test and fix all of these issues before they release a laptop.