It also doesn't appear to be the case even now. I searched for laptops available in my country that fit my budget and for each laptop searched "<laptop name> linux reddit" on google and filtered for results <1 year old. Each laptop's reports included some or other bug.
https://www.reddit.com/r/linuxhardware/comments/1hfqptw/linu...
https://www.reddit.com/r/linuxhardware/comments/1esntt3/leno...
https://www.reddit.com/r/linuxhardware/comments/1j3983j/hp_o...
https://www.reddit.com/r/linuxhardware/comments/1k1nsm8/audi...
The laptop with the best reported linux support seemed to be Thinkpad P14s but even there users reported tweaking some config to get fans to run silently and to make the speakers sound acceptable.
https://www.reddit.com/r/thinkpad/comments/1c81rw4/thinkpad_...