I have an XPS and I personally find it better than the M1 MBP in almost everything except power efficiency, so I have much difference experiences compared to your other review in this thread.

The XPS doesn't make much noise and I notice no difference in speed while developing. Some tasks are even faster, because native Docker instead of running via Docker for Mac. The battery doesn't last as long I guess, but it will still last for 8 hours, which is far longer than I need.

This is not my experience with XPS 15 (2019). It is substantially slower, it is loud and battery used to last less than an hour. Then constantly dying chargers, I had a box of Dell chargers that worked for a month and then laptop stopped recognising them. For the tasks I do (I use Docker heavily) M1 is more than twice as fast in low power mode and never heard fans going off or felt any slowdowns. On XPS if I opened a heavier webpage, it was possible for the entire laptop to slow down and not even refreshing the screen timely, so you witnessed a slideshow and usually only way out was to perform a hard reset. Also random power off or if it goes to sleep it won't wake up. I have to then leave it for an hour and then maybe it will power on (sometimes I have to try a couple of times). This is actually the same experience I had with earlier XPS 13. Google XPS won't power on - plenty of people have this problem.