well… in most cases, you “can”… but you might not want to… imagine being stuck with Cyberpunk or No Man’s Sky exactly in the state they released in.

However, there are a few examples where, yeah… you actually couldn’t really. THPS5 famously released in a state where the Day one patch was basically most of the game, with only the tutorial and level creator being accessible without it. I’d say there’s a risk this could become the new normal, but I have a feeling everything will just move to digital marketplaces before stuff like that becomes commonplace.

Releasing a so called full game, but including the dlc into the disc

That one doesn’t seem quite as common anymore. It’s more common that the disc will have an unfinished version of the game and require a Day 0 patch in order not to be a hot mess.