Earlier quoted context omitted.
100% agree. The last generation of MacBook pros with intel processors were virtually unusable for zoom calls or any intensive processing power tasks.
This is downvoted, but my intel MacBook Pro (maxed out specs) from 2015 really was dying on zoom / MS teams calls. Probably says a lot about those two apps, but this was one of the main reasons I upgraded to an M1 Mac during corona.
I did manage to make it handle Zoom just fine by opening it up and blowing it out with an air duster, which I've been doing about every 6 months since 2018 or so. The interior is a magnet for dust in a way that my Dell work laptop just isn't (even though that thing is a PoS in many other ways, most of which I suspect are down to Windows rather than the hardware).
After a periodic dusting it runs a whole lot better - no lag or dropped frames - even when the fans come on. It's still a nightmare for fan noise compared with my 2011 17" MBP (again, maxxed retail specs, but then replaced internal drive with SSD - which made it a new machine - and upgraded to 16GB RAM because you can replace at least some stuff in machines of this vintage), which then unfortunately died due to the GPU desoldering issue (I've already "fixed" it once by reflowing the solder, but this only held for a couple of weeks before it died again).
I think I'm going to wait for M2 MBPs and then splurge - hopefully get 7 years out of the new machine as well.