I don't know if things have changed with the new Xbox Series X and S consoles. With the Xbox One, we could use any external hard drive. It didn't have to be a dedicated Xbox brand one. :) Yes you can download the games directly onto the external hard drive and play them from there. You don't have to move them onto the internal storage to play them. I just keep my external hard drive always plugged into my console. That's all I use that hard drive for. You have the option of setting the console to download to the internal storage or the external storage. If you find that you're running out of storage on either, you can move the game from internal to external and vice versa. An 80gb game would take a while. Not sure exactly how long it would take to transfer though. When installing games, I always link my console via ethernet cable. I use that to play games too. I don't rely on WiFi. I've got fast WiFi now. For people with very slow WiFi, some games can take a day to install onto their consoles. :o I had VERY poor WiFi when I used to be with TalkTalk. It took over a day for me to install Halo Master Chief Collection. I couldn't believe it. :S
Wow. I thought the only hard drive you could use was the official Xbox one. Isn’t that the case? Can you play games straight from the external hard drive or do you have to move them over to the internal storage first? If the latter, how long does that take for an 80gb game?
I forgot to add, you need space on your Xbox for Xbox system updates too. Some of those can be huge too! :o (lol)
You can delete some games and only keep the games on that you are currently playing. That's a bit of a faff though. It is nice to browse your library and play what you feel like playing too. Once you have the games, you can re-install them again though if you uninstall them. I would suggest that you buy a decent external hard drive though. I bought a WD Passport 1TB one some years ago. That is now full. Get the most storage you can afford. If you have game pass ultimate, you will use download space for those games. Also, when Xbox Games Live Gold you get 3 or 4 games a month that you might end up downloading too. Plus like I said, game updates etc. Game updates can seriously be LARGE! :o Before you know it, your storage is GONE!!! (lol) Have a look on here for deals on external hard drives. I like storing my games on the external hard drive too. That way if I get a new console, or go to a mate's house, I can just plug my hard drive in and game. :) See how you get on. (y)
Thank you @Loubou . Wasn’t aware of that. I’m already out of space! Guess I should delete some games to make space.