The following has been my own experience:

On a pi, you’re much more likely to run out of memory than cpu compute. The increased memory gives you more concurrent things to run…images etc.

Back when I got them and they were just north of a 100 bucks it made a lot of sense. Not so much with current prices.

Having them tho, I really enjoy using them with poe. Their idle power draw is very low. Which is great for budget homelabs. But if I was looking for hardware today I’d look for used nucs.