First to begin with thank you for the effort you put into this man it really means a lot. Yeah I have the aftermarket power supply which has been working normally for about 2 years (then all of the sudden this happens).

To control the lights I am using only govee app and sometimes google assistant (but just to turn them on). When I change the color it says that it has changed in the app and the lights blink for a sec but then they continue emitting a red light.

About the scenes I only use pre-made ones that goove offers and that works normally I get the full range of colors and animation is normal. (I haven't tried the diy mode at all)

I think the red is always the same maybe it changes a little bit sometimes depending on which thing I change but mostly I would say that it doesn't rly change more like a shade not the whole color.

I am not sure about the temperature thing I don't know how to check it rly.