Which one is better between `xcb` and `eglfs` on raspberry qt native built installation

[SoheilSabz]

I need to install and use Qt for my gui medical device (dental glazer furnace) part into my raspberry zero like this:

SO I have tried cross compilation qt first which I have some problem which doesn't solve, could be seen here:

https://forum.qt.io/post/534298

and

https://forum.qt.io/post/534028

so I prefer to build native installation Qt v 5.12.3 into my pi zero and now I have some problem like these:

https://forum.qt.io/post/535271

now based on my question answers, I need to choose between xcb and eglfs plugin, SO I searched via internet and found these:

https://forum.qt.io/topic/23738/egl-eglfs-xcb-and-opengl-es-in-qt

and

https://stackoverflow.com/questions/21488072/what-is-the-use-of-various-qt-platform-plugins

but I don't find out what is better for my qt GUI design as you can see I need something like these:

and

So what do you think I better between xcb and eglfs plugin for my usage to be chosen?

this question link via raspberrypi.org :

https://www.raspberrypi.org/forums/viewtopic.php?f=67&t=242854

Thanks.

[raven-worx]

@SoheilSabz
if the sole purpose of the device is to act as a medical device with a UI go with EGLFS (and QML) and avoid the X11 overhead.