Remember when NFTs sold for millions of dollars? 95% of the digital collectibles are now probably worthless.
(markets.businessinsider.com)
Video game ownership rights have been going downhill for years. Most games can disappear from your account at a whim, and you can't sell them on when you're done anymore. At least with blockchain-based DRM, you'd be able to sell it when you're done - and if the thing is hosted in a decentralized manner (IPFS, Pinata etc) then the creator can't simply delete it or delist it. You'd own it without permission.
In theory it could be a good idea. If done right.