Actually, it doesn't run that different of software from the Quest. The Quest is fully backwards-compatible with the Go, and Carmack has complained on multiple occasions about how they took out compatibility intentionally for the Quest 2.
The Quest is still getting a surprisingly good amount of support for now, and can run pretty much every 'blockbuster' game on the platform reasonably if not well. I wouldn't be surprised if they stopped supporting it in three years (or, more realistically, no game supports it in three years), but the Quest and Quest 2 can both stream software from your PC to the headset, if they do.
The Quest is still getting a surprisingly good amount of support for now, and can run pretty much every 'blockbuster' game on the platform reasonably if not well. I wouldn't be surprised if they stopped supporting it in three years (or, more realistically, no game supports it in three years), but the Quest and Quest 2 can both stream software from your PC to the headset, if they do.