As for me, I pay an extra fee to have boundless data on my private Madden 21 coins home network. However, for anyone with no option, data usage is a large element for Stadia games.
In terms of data usage, it will of course vary according to your quality preferences. If you are intending to play Madden NFL 21 with Stadia Pro at 4K then you are likely looking at about 16-20GB of data usage per hour. As this is a sport you can play solo, online, or anyplace with buddies on the same Stadia link (through Chromecast with multiple Stadia controllers or on mobile or a PC browser with multiple controllers plugged in), it is impossible to know precisely how much information it will suck since hours will vary for everyone.
I played with Buy Madden nfl 21 coins on Chromecast through my 4K TV, on PC at a Microsoft Edge Browser, and on mobile both with the Razer Kishi and using only touchscreen controllers. Remarkably, Madden is really very playable using touchscreen controllers as soon as you get accustomed to where the digital buttons are located. I'm still frustrated that I can't remap or alter in which the buttons are on my display since doing things such as holding R2 to sprint are awkward if you'd like to also be able to cover up the ball before an effect or quickly juke with the ideal stick. When it comes to the fundamentals of playing however, you can complete an whole game on Stadia using only touchscreen controllers if you wanted or at the very least do some management functions like admin work or undergo trade provides.