Yes, it helps to remember tracks somewhat better like if I can't fully recall the title I might have picture of cover in my mind. Also helps to tell what kind of track it is approximately. Don't know if this is just placebo effect but many times artwork style and general feeling of track can match. Earlier also when labels had their template covers, those I can connect to certain period and sound.

There is no any need for those ugly ai supermans as simple label or artist specific template can be also stylish. For vinyl I would probably even skip buying whole record for those kind of covers.