Sigh.....these are the settings confirmed by DF after they paid someone to
revisit the game and find the equivalent settings, including matching the DRS scaling.
View attachment 11020
View attachment 11021
So no, RT mode isn't a fixed resolution as you can clearly see in black and white is says
DRS
My settings are a match to what DF confirmed above after revisiting the games settings.
Alex from DF even liked my comparison post, and I would like to think that if there was an issue with the settings I used he would have at least mentioned it, but he hasn't said anything so that should give an indication the settings I used are correct.
I'm not replying to you further.