It does come down to the hardware. I have had no problems with wifi, video, suspend/resume, hibernation etc since a laptop ago bought in 2007. I have been buy

It does come down to the hardware. I have had no problems with wifi, video, suspend/resume, hibernation etc since a laptop ago bought in 2007. I have been buying the Thinkpad T series with all Intel components. Especially the wifi and gpu are Intel. Everything worked with Ubuntu. If you have Nvidia or AMD GPUs, some other wifi vendors (cough broadcom cough) then there can be issues due to drivers, firmware, binary blobs etc. They manifest as suspend/resume issues, wifi flakiness etc. So yes you can do it by selecting component vendors, but in general 100% of systems will not be robust.