The fact of Madden is that if you are craving an Madden 21 coins football experience then you don't actually have any other choices. Buying the game on Stadia could show EA there's interest in more of the sports titles coming into the stage, which is an overall great thing, it is just too poor Madden could not have a better entry to function as its debut.
Now let us dive to the gaps on Stadia.
Madden NFL 21 Stadia review Stadia performance and comparisons
As is the standard now with the Stadia version of AAA games, it plays wonderfully and doesn't have any noticeable issues with lag or latency in case your link is good enough. Anytime you play Madden online kicking does suffer from minor latency problems, but that is the situation across all variations of the game -- not only Stadia. This season it's worse than usual so that you should absolutely expect to overlook a few field objectives and extra points. They need to have changed the net code for how kicking is managed or something because even on PS4 and PS5 I had been having problems hitting kicks just right and these issues persist at the Stadia variant.
Google recommends at 10Mbps download speed for 720p streaming, 20Mbps download speed for 1080p streaming, and at least 35Mbps download speed for 4K streaming.
As for me, I pay an extra fee to have Mut 21 coins for sale unlimited data on my personal home network. But for those with no choice, data utilization is a large factor for Stadia games.