Baby no longer likes solids

My LO basically has stopped eating solids. He hates me feeding him purées. He is so picky now, he spits everything out even if he feeds himself.

He only eats a few things and not even so well. He likes peanut puffs that he eats on his own, and plays around with some fruits and berries, that’s all.

He used to eat so much solids, oatmeal, purées, everything. He changed about a month ago. He now has 4 top teeth, so he should be able eat better too, but no, he is fully back to milk!

Anyone else having food regression??