In my experience, Ubuntu, or Linux in general, works great on desktops but very poorly on laptops due to lack of hardware and driver support. Not a hardware engineer myself, I think this is because desktop hardware is more standardized while laptop hardware is more proprietary, advanced, and custom-made to different makes and models. My previous job was the first job I had wear a company-supported Linux laptop was even an option. I absolutely loved it, but fully admit it was incredibly difficult to set up and maintain. Most devs continued to use Macbooks.

One specific Linux issue I ran into repeatedly is that Chrome and Chromium by default refuse to trust Linux graphics drivers and instead do software rendering. It turns out, software rendering makes your browser really slow and makes it burn tons of battery when not plugged in. I eventually figured out how to enable most acceleration for Chrome. However, there were several electron apps like Zoom that didn't expose any option to enable hardware acceleration. The zoom desktop app was completely unusable for me on Linux. Instead, I used the browser app exclusively.

Slack was similarly unusable without hardware acceleration but to its credit exposed an option to enable it.