Couldn't make it work...I am familiar with the issue you are describing, I had this in Xenoblade Chronicles 2 where game kept overriding the resolution at points, probably game dynamic res going haywire, I eventually found a fix for that game.
I am not sure if Triangle Strategy has exhibited this issue for me, I am leaning towards not. It is obvious in the worldmap, always looks super sharp and is consistently hugely better compared to default resolution (I am now in Chapter 12, this game is good). What I did is, 3x resolution scale in Ryujinx and then I am using for cheats only the 60 FPS cheat you provided me, but none of the other graphics cheats. Rather than use cheats, I used the configuration file from post #3 in this thread and installed that as a mod file into Ryujinx: mods\contents\0100cc80140f8000\romfs\Newera\Content\Paks\Newera-Switch_p.pak
Hope that helps.
In the end, I've settled on playing it with Yuzu, which can sustain the beautiful 3x scaling as shown below which hasn't worked with Ryujinx even after trying many different solutions...