siimav

That definitely isn't true. In fact, MJ recommends using AA instead of it's own aircraft autopilot.

Not every variable used in the RP-1 preset is supported by LGG's version of KCT.

It isn't a dependency. You're probably referring to "TweakScale Redistributable" which is just something that is required to make the integration between FAR and TS work. It doesn't do anything useful without TS actually being installed.

I mean, sure, if you don't consider an unrealistic atmosphere made of soup a problem.

Yes.

Oh No!

That is only partially true. RP-1 (or actually RO in particular) does have a builtin "PR" but this will disable itself in favor of other installed mods that handle rotation. https://github.com/KSP-RO/RealismOverhaul/blob/edd0809c715e87d6844216e39a2470eac50e0691/Source/VesselModuleRotationRO.cs#L68

2.2.1 for KSP 1.12 What's Changed Reenable changing active contracts multipier by @phillo3 in #4 Full Changelog: v2.2.0.0...v2.2.1.0

So what's the conclusion here? Does it work or not?

https://github.com/KSP-RO/RSS-Textures/tree/master/tools/TopoConv

How is that even related to FAR?

Hard to say anything without seeing ksp.log.

2.2.0 for KSP 1.12.3 What's Changed Add resetChildrenWhenVesselDestroyed parameter to VesselParameterGroup by @siimav in #3 Possible fix for logspam reported in #1 Add continuous integration (GitHub Actions) by @siimav and @StonesmileGit in #2 Full Changelog: 2.1.4...v2.2.0.0

Fortunately we have a wiki that contains the answer to that question and many more! https://github.com/KSP-RO/RP-0/wiki/First-Rocket-&-Early-Career-Tutorial

It does in the ksp.log at least.