I’m a lawschool master student who often has 50+ safari tabs on pretty heavy websites and lots of word/pdf files
I've run similar usage scenarios to yours on my 32GB i7 2018 MBP and also on an 8GB 13" M1 MBP. The M1 was actually a tiny bit faster for everyday usage tasks like Web browsing and viewing PDFs even when I overloaded the available memory.
The one area where it didn't shine was with MS Office. I don't know how to get Office to run acceptably. No matter what I do it's always the slowest dog in a geriatric dog race.
While I had problems with Office on the 8GB M1, I also have problems with it on my 32GB 2018 i7 so having lots of memory was no salvation. Excluding Office, I had no problems zipping along to heavy usage on the 8GB M1.