Question: How to use with "preserve UI"

i want to know how to use with this:
https://www.pcgamingwiki.com/wiki/Omikron:_The_Nomad_Soul#High_resolution_support_with_preservation_of_the_original_aspect_ratio_and_GUI_size

because i think subtitles became too small with higher resolution, the ideal will be the wide-mod + "small resolution UI".