Having ADHD it was a productivity killer. For instance when I am running tests on M1, they finish in about a minute, whereas on XPS I could go on a quick coffee break. I wish I didn't have the mindset that XPS was enough for me. I bought a M1 PRO recently, because I was tired of issues with my XPS 15 (which eventually died - won't power on). Had to fight with kernel upgrades to get a patch ahead of time to make it usable.
Worth mentioning that Linux Wi-Fi drivers for the model I have is terrible because they had two different chips they were using for XPS laptops and getting 32GB meant I would get that "upgraded" (but actually worse) chip. Arguably it's more resellable because I can just wipe the Linux partition, re-merge the partitions, and it'll look pretty much stock. Impossible to get the developer edition, so I had to settle with getting it with Windows (and 32GB RAM) and setting up the dual-boot myself. But it was the exact same story when I was shopping for it. I'm currently on the previous generation Dell XPS 13 (9310), and I'm still satisfied, I'm not actually looking for a new laptop. You can't even choose the top CPU option with Ubuntu, you're stuck with the i5. Add in a few electron apps, and I'm at 27GB used right now. Firefox fluctuates, but often half a dozen depending on how many tabs I have. My Jetbrains IDEs eat up easily a dozen GB for indexes on my projects. Because modern developer applications are incredibly RAM hungry.
You can't choose Ubuntu and 32GB RAM at the same time.