I have ATT Unlimited Plus prepaid, $50 a month after autopay, now renamed Unlimited Max? First 22GB of data is not deprioritized - I used to have Verizon prepaid and it was garbage as a comparison.
Prepaid protip - if you fill your balance up with prepaid cards, often discounted at Target for example, you do not incur taxes. My $50 plan is $50, and really more like $42-45 depending on the ATT prepaid card discounts I can get.
By my rough math, as an example, even with my 11 Pro Max trade in to Apple being $370 and a contract trade in would be ~$1000, I still save ~$1000 over 36 months using prepaid and buying outright.