I agree to most people’s comment and sentiment here that the M1 Mac is generally a better machine then the Intel. I had a 16"MBP that I can cook an egg on it. However I do have issue with the limited RAM ( I have 16Gb) on my M1 Mac mini and I am struggling with memory from many apps that I have opened. I have another Intel Mac mini that has 32Gb of RAM and does not seem to have this memory issue.
The key offenders are Chrome (unfortunately I have to use Chrome from time to time, although I like Safari), Devonthink, Apple Mail and now the electron version of 1password (ver 8 early release) , see example of below.