You're a madman. This is a mode I never even considered for these LCD handhelds, but it's very cool.
The games have all been working great! I tried docked mode and handheld, all the games performed perfectly.
Thanks for the feedback. It's so cool to see it working on Steam Deck! And yeah, when I have some time I plan to do a few more of these 3D mods to some of the other games in the collection.