For "general computing" buy a used MacBook or Mini for $400 somewhere and you're golden. I was using a 2012 13" i7/8GB RAM/512GB SSD Retina MBP for my consulting work for a few months while I waited for Apple to launch the new MacBooks.
I mean if you want the new 16" MBP by all means buy one. I'm loving my 14" but it was a total splurge.
I do nothing that would ever come close to taxing the M1 Pro CPU (mine is the full fat 10 core one too with 1TB flash and 16GB RAM) but I've been waiting for years since my 2015 15" died in 2018 (logic board) and I have my own business, so it's a write-off
If you buy the 16" M1 Pro base with 1TB storage, you won't need another computer for 10 years.