Interchange cvar settings in 5.4

With Interchange was enabled in 5.5 it tended to have a lot of issues. In disabling the plugins, we got a bunch of different issues.

What I would like to do is re-enable the plugin but set all of the cvars to what they were in UE 5.4. Can anyone tell me these please?

You should be fine with Interchange plugin enabled and just disabling it for the FBX format.
you can disable it with that CVAR Interchange.FeatureFlags.Import.FBX=False

If you do not want to type if everytime you open your project, you can change the DefaultEngine.ini file in your project and add this in it.

[ConsoleVariables] 
Interchange.FeatureFlags.Import.FBX=False