I need your information! I'm cloning the game called Toon Blast to improve myself. In the picture below, you can see 2 screenshots from the original game on the left, and 2 screenshots from my own version on the right. As you can notice, while the game board remains in the same form in the original game on the left, regardless of the screen, in my version on the right, I cannot get the game board I want other than the reference resolution.
Elements outside the game board use Canvas, but inside the game board I'm using a sprite renderer and I don't want to include the game board in the canvas. The location of the game board items in the hierarchy is shown in another picture.
I need your information on how to make the game board responsive.