Yes. Burning debris in the upper atmosphere has unknown effets on the environment, plus the exploitation of rare earth metal that cannot be recycled and the energy expenditure. Musk want to burn more satellites per year than what we ever launched prior to this, and every other greedy company wants to follow suit with their own junk.
LEO internet is not sustainable and should be banned.
If you want satellite internet geosync is way better. The only downside is latency but it's not worth destroying the planet and ruining astronomy globally over.
My modelling is CPU bound as it's a model made in Fortran by physicists (me included). The fact is that I wouldn't get a 4x boost, and a model running overnight still would. When I actually need performance I use a 1000 cores compute cluster for multiple days, so that would never run on any consumer CPU anyways.
For the data processing, the real bottle neck is disk access and my scripting speed, so the CPU doesn't really need to be amazing.
My still new-ish phone is a pixel 4a I got used. My laptop is a 2012 model and my car from 2006.
The release cycles are insanely fast and have been for a while.