As already mentioned, I suggest business lines of laptops as they are built to a higher standard, and I also recommend used/refurbished for a significant saving. It depends on what you need it for but for most personal use, that’s what I’d suggest.
If you need the latest models for performance or specific hardware or warranty coverage, then you probably already know your requirements.
For linux support, you should look at what others have reported for that specific model and/or hardware.
I got a refurbished Dell E7250 and I like it a lot especially since I paid only around 15% of its original value after 3 years. I’ve had no issues with linux on it.
One more thing: support. Business lines get supported much better/longer than consumer lines. The now 5 year old, out-of-warranty Dell E7250 has gotten 22 (!!) BIOS updates, most recently just months ago to address Intel speculative execution vulnerabilities, and even add some enhancements. In contrast, my previous Asus ROG laptop got nothing past 1 year, even when I and others asked Asus support to rectify some BIOS issues.