I've long said that it has enormous shitposting potential. The only suno song I've seen catch on to any degree is this one, though:
https://suno.com/song/45a7a5b4-7c47-4958-afd7-7f14282e2feaMy theory is that it reads as low-effort OC and that audio alone isn't a great medium for spreading over the internet, but with well-written lyrics these songs can be extremely funny. Once AI can be used to readily make similarly funny music videos, I expect it'll take off.