Why am I limited to 800x600 resolution in AQEMU with Ubuntu distros?

Hi.

I use AQEMU. I install mostly Debian distros and I can get a comfortable resolution of 1024x768 - I can get higher but find that resolution fine.

Solus also worked without issue with 1024x768.

Whenever I try any Ubuntu distros - I can get many resolutions in the live session but once I install the distro - I'm stuck with 800x600 which is just too small.

Is there a remedy?

Thanks.