Anything, including dialup, should be better for gaming than satellite (which has a built in 350-400 ms of latency/lag each way, due to the signal having to go 10% of the distance to the moon UP, then 10% back down, before it even hits the net)
The mbps is a useless metric for measuring game speeds past a certain point (it's more of metric for downloading one-way, be it grabbing a file or receiving streaming, as the only info being sent the other way are commands and checksums), and many the formats of "broadband" are as different from each other as a tank, an 18-wheeler semi, a ford explorer, a Mini Cooper, a motorcycle, and an electric golf cart. The term needs to be banned, as it lost meaning 10-15 years ago as it supplanted "dial-up". About the only thing they have in common is their Down speed is several times their "up" speed.
The real limiter is latency (which you see as lag time), the length of time it takes for info to get to its destination and back. And, to measure whether a hotspot for a cell carrier would be suitable for gaming, you need to find a speed test you can use that will tell you the latency and the "noise" (the interference with the signal, which ironically was more a thing for dial-up than wired broadband if the network is running right, but really comes back as an issue when dealing with wireless, because of building materials and distance to towers).