This came with installation hardware too, but a lot of new toilets don't even have holes for bolts nowadays. The adhesive is more than sufficient to hold it down to the floor tiles. The silicone caulking I use to tidy it up afterwards just adds to that hold.

The main reason to not use bolts is to avoid drilling into the floor and puncturing the water proofing membrane or floor heat pipes/cables.

you don't put in a wax ring?

But it's also the big reason first time installers struggle. They tighten those bolts too much and crack three porcelain.