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Electronic advancement, if you talk about cpus and such, hasn't stagnated, its just that you don't need to upgrade any more.
I have a daily driver with 4 cores and 24GB of RAM and that's more than enough for me. For example.
It has absolutely stagnated. Earlier transistors were becoming literally twice as dense every 2 years. Clock speeds were doubling every few years.
Year 2000, first 1GHz, single core CPU was released by nvidia.
2010 the Intel core series came out. I7 4 cores clocked up to 3.33GHz. Now, 14 years later we have sometimes 5GHz (not even double) and just shove more cores in there.
What you said "it's just that you don't need to upgrade anymore" is quite literally stagnation. If it was a linear growth path from 1990 until now, every 3-5 years, your computer would be so obsolete that you couldn't functionally run newer programs on them. Now computers can be completely functional and useful 8-10+ years later.
However. Stagnation isn't bad at all. It always open source and community projects with fewer resources to catch up and prevents a shit ton of e-waste. The whole capitalistic growth growth growth at any cost is not ever sustainable. I think computers now, while less exciting have become much more versatile tools because of stagnation.
"Mores laws dead" is so lame, and wrong too.
Check out SSD, 3D memory, GPU...
If you do not need to upgrade then it doesn't mean things aren't getting better (they are) just that you don't need it or feel it is making useful progress for your use case. Thinking that because this, it doesn't advance, is quite the egocentric worldview IMO.
Others need the upgrades, like the crazy need for processing power in AI or weather forecasts or cancer research etc.
GPU advances have also gone way way down.
For many years, YoY GPU increases lead to node shrinkages, and (if we simplify it to the top tier card) huge performance gains with slightly more power usage. The last 4-5 generations have seen the exact opposite: huge power increases closely scaling with performance increases. That is literally stagnation. Also they are literally reaching the limit of node shrinkage with current silicon technology which is leading to larger dies and way more heat to try to get even close to the same generational performance gain.
Luckily they found other uses for uses GPU acceleration. Just because there is an increase in demand for a new usecase does not, in any way, mean that the development of the device itself is still moving at the same pace.
That's like saying that a leg of a chair is reaching new heights of technological advancement because they used the same chair leg to be the leg of a table also.
It is a similar story of memory. They are literally just packing more dies in a PCB or layering PCBs outside of a couple niche ultra-expensive processes made for data centers.
My original comment was also correct. There is a reason why >10 year old MCUs are still used in embedded devices today. That doesn't mean that it can't still be exciting finding new novel uses for the same technology.
Again, stagnation ≠ bad
The area that electronics technology has really progressed quite a bit is Signal Integrity and EMC. The things we know now and can measure now are pretty crazy and enable the ultra high frequency and high data rates that come out in the new standards.
This is not about pro gamer upgrades. This is about the electronics (silicon based) industry (I am an electronics engineer) as a whole
Dude repeat it all you want, mores law still rules lol.