I had notches bitten from the leaves, which I treated in late September with nematodes. There are now tiny white worms that float on the surface if I pour a bucket of water into the pot. They don't look like vine weevil grubs but I can't identify them to know if they pose a threat.
Camellia Pest Problem
Certified GKH Gardening Expert
If you don't see any damage, the tiny worms are likely the nematodes you added. Nematodes are difficult to identify by their appearance because they are so small. But aside from the beneficial nematodes you added, there are other harmless nematodes that live in the soil. So if you don't see damage to the plant, there's no reason to worry.