How a find the binarie of Minecraft?

[DeividWilly]

How to find the main Minecraft file to add it via Steam (to play with controller via big picture)

[evan-goode]

You'll still want to go through the launcher rather than trying to launch Minecraft directly, but you can run PollyMC with the --launch <instance id> argument and it will launch straight into Minecraft. So the command you'd run is:

/path/to/pollymc --launch 1.20.4

or similar.