Hi again!
Sorry if my answer might be a bit off, your particular english inflexion is rather difficult for me. I will improve on that, english is not my native language, so I assume a double language abstraction here. 
My Continuum project started on NET core 3.1 but I migrated it onto NET core 6.0 and that happened 2 months ago.
I am not sure how much of the GPU accelleration I am using. I am using a texure2D to assemble data from my video memory layers and scaling that to the screen. That I can change if needed, but I consider it a minor component.
However, I have not exausthed all means of testing my release on DietPi. I barely started. I will get back to you after some thorough testing.
Hey!
Thanks!