From a quick test, it's just the same image duplicated, so no depth / 3D effect is created.
I tried to test using the desktop version with Reshade some time ago, with ppsspp v1.4, but couldn't enable the SBS filter with ppsspp. Maybe it is worth try again now that v1.5 is out.
I had some success using Reshade with cemu and a 3D TV. This time I would also try it with VRidge.
Oh yeah, I’m playing Persona 3 Portable (as shown in the vid) and it works just fine. Er, though the lagging is user error and not PPSSPP’s fault 😂 That said, you should check the minimum requirements to run it on their website if you need to
Also, if you do get it, I recommend getting one of those controllers you can put in your computer so you can play easier instead of just using your keyboard... but that’s just my preference 😁 No shame in sticking to your keyboard
Well, one way to solve this is to download something like https://play.google.com/store/apps/details?id=com.wparam.nullkeyboard and set it as the default keyboard so that nothing pops up in and out off PPSSPP.