Physical disks !
but buying is too expensive so I rent it.
Buying a game is only a good idea if you tend to keep the game.It's a given that selling the game after playing it will lose money. Downloaded games really have no resale as far as I know.
Renting the game is a convenient alternative. Works out fine since I keep the game only for a couple of months and return it. Costs only a fraction of the price of the new game.
Most of the big rental stores are closed.If you don't have a local small rental store with a decent selection of games, there are online rental sites for games.
Check out :
Gamefly.com for US only, somewhat expensive !.I think they also have downloads.
MyChoiceVideo Canada based, but supplies US and Canada. I'm with them as I'm Canadian. Great selection and pricing. Overall works fine. Probably adds a day or so to the US, I don't know but should be no biggie. Console games for PS4, etc. no PC games or downloads, just console game rentals
I'm not into downloads as such.