Speaking for myself… I’ve always found that when I limit the amount of RAM I have installed things start getting wonky.
With my ‘15 27” iMac I have 24G of ram. Now maybe it’s the age, or maybe not. But when I’m on Amazon trying to see what I have saved for later, I run out of memory, and Safari crashes. Or if it doesn’t, I can’t scroll up to check something again - the area is blank.
This also happens on Facebook. 🤬
To be sure I’m not running the highest intel processor that was available at the time, I’m 2 or 3 steps down from that.
I also moved all of my “iTunes” content to an external drive decades ago (music, movies, TV shows) because Apple has never shipped a Mac with enough internal storage for everything without going with a “pro” model. Which I don’t need, nor could ever justify to my wife.
Next Friday, I’ll have my new machine, and after transferring my data from the old to the new (which might take all night), I’ll finally be “up to date again”.
Next year we plan on getting the 20th anniversary edition iPhones and new Apple Watches.