Lookups are visible to those with no access, but not rich text

Okay makes sense.

True, it might indeed not be a problem. The problem is the inconsistency.

All lookups viewable:
Share the RTF in the lookup for the contractor on the “Project contractor” entity.

Only lookups you have permissions to:
Share the project itself with contractors. They will the breif on there, and no other sensistive info they dont have access to.

My workaround for now is a button automation to “Send to Contractors” that copies the rich text into the related contractors. It works (and might be even better)! And I could even set up as a rule for as its changing to update the others. But this was how I stumbled upon this weird difference in behaviour. Again, not the end of the world, just a bit funky behaviour that I wasn’t sure if it was flagged. And thought it might be good to include in the user guide.

Thanks Anton!