I mostly play KSP on my laptop. For better battery life I limit the framerate and lower the resolution to 720p.
KSP 2 does not run on my laptop in its current state but I tried to lower the resolution on my PC and it is very disappointing compared to KSP 1.
A few exemples at 720 x 1280, the lowest resolution available for KSP 2.
Celestial body and craft name barely readable.
Fuel values unreadable.
Cross in the top right of windows not visible, this is very annoying.
Craft descriptions in the VAB hard to read.
Text in the training center unreadable.
Overall the KSP 2 UI looks way too small for no reason. And bad scaling of the font used at low resolutions doesn't help. This will be an issue on small devices like the steam deck where the screen is small and 1080p is not an option. I also tried to stream the game to my phone using steam remote play and it is very hard to use the UI compared to KSP 1.
Hope to see this part of the game improved in the future!