There’s like… only two sequels in theaters right now. Paddington 3 and Captain America 4. New IPs have sprouted up all the time in recent years with M3GAN, They Follow, (probably) Novocaine, Rebel Ridge.
There’s too wide of an array of things out there to make such a blanket, dismissive statement.
I guiltily admit to not having seen either of those yet (my watchlist is enormous); is Mickey spawning a series? I was specifically thinking of movies likely to have more sequels coming out.