Awesome, I didn't see an Options Menu at all on the Main Menu, it just kind of Drops you in. I'm assuming the Browser Version is outdated then?
Viewing post in Starbreed [3D Rail Shooter] comments
Ah! No, as mentioned in the above post. There is currently no options in the Main Menu, only in-game and in the hub (You access the hub after completing the first level. It is a different scene than the Main Menu).
Options will be added to the Main Menu in a later build.
Unless you were referring to the gamepad being weird on browser. In which case that's actually something to do with Unity's built-in Input System. For some reason it completely scrambles the button layout depending on platform. The button mapping was done for the download version, but when built in WebGL, Unity scrambles it... dunno why, but this issue will be obsolete once I switch off it's legacy system, and shift over to the new input system.
In short, the Download version is the same version as the browser version. The browser version just acts differently in some ways due to platform.