Hey Benny!

 BP> you will see bigger diffrent on bigger screens

We did a sample usb stick (h264 movie) to a 42" 1080p and it looked great.  This is a neighbour's smart tv.  As far as booting to it I haven't done and have no plans to but I imagine that could make a difference if it were a large 4k screen.  I have absolutely no plans to buy one just to find out so it looks like you're the goto guy.

 BP> would you share the grub config for this ?

Yes.  Did you want the whole thing (/boot/grug/grub.cfg) or/and just how I generated/installed it?  If I am not mistaken it was on a archlinux wiki that I first stumbled across a reference to it.  I'll see if I can find it again as it proved to be very helpful.  Also I need to eventually bring this znver1 up to speed as it kickstarted this process for me.  It's default monitor is a 7" 720p.  I like it even for movies but only use the console framebuffer for that as there are no xorg apps/libs at the moment and probably will never be.

This weekend I plan to be lazy so probably later this week.

Life is good,
Maurice

... All'alba vincer•! Vincer•! Vincer•!
--- GNU bash, version 5.1.16(1)-release (x86_64-znver1-linux-gnu)