I've been happily using this plugin but I did struggle with the full width issue at first, now I know why. I do enjoy it's simplicity, I'm also left wondering why this functionality isn't part of the core set of blocks ( but I acknowledge that smarter minds than min make these desicions ).

I'm using it with the Astra Pro theme and full width works nicely with the Astra's full-width/stretched page layout. I think I'd be more encouraged to see plugin use the more standardised WordPress approach.

Having said that I may just invest in Generate Press and enjoy the integration.