Have both, rarely use Prime to be honest. As Purple said there are a handful of good shows but little else, whereas on NetFlix I'll almost always find something worth watching if I spend a few minutes looking.
If you can get a free trial of Prime, watch the likes of Homecoming, Goliath, Good Omens, Tales from the Loop, The Expanse, Catastrophe then let it expire.
Apple TV+ is also worth a look. The selection is still fairly limited, but some really great quality shows. If you buy a new iPhone at any point you get something like a year free.