Gutenberg dont adjust according to view screen.

From your video is not clear what is not adjusted to size. If you mean image of background then it’s using your settings of background sizing. Use Cover and it will fill whole space

Hi.

yes if you look in the video you can see when i open side panel, background dont shurnk to fit in screen.. because of that view is getting blocked and unable to adjust blocks according to it which i placed on that big image. Hope you get it now.?!

I was not able to see any bug on your video. You set background size with custom values, so your background is using your values and for me it looks like correct view. Try to use background size as Cover if you need fitting to size

Closing as I didn’t get answer