Non-protestants are still rather light on compulsory behavior on the whole. Compare to orthodox branches of other major religions. No particular rules on clothing, cleanliness, charity, gender separation, pilgrimages, prayer times, need to attain spiritual states, etc. No karma to optimize. No hidden knowledge to uncover.
Some churches eat a bit of cracker and juice/wine on a regular basis. Some get a person wet as a one time initiation ceremony. That's pretty light ritual on the whole.
And while various High Mass clothes and rituals are certainly there, there's no particular requirement of parishioners to give one, attend any particular mass, or even attend a minimum number of them.
> No karma to optimize
but I actually had the more karmic things in mind, i.e the importance of Works vs importance of Faith, which certainly does vary between different Christian sects.
> No hidden knowledge to uncover.
There are gnostic types of things. If perhaps less so today than in the Renaissance. But it's not as if it's absent.
So I still think this is a rather Protestant perspective.
Edit to say: Also, in fact even or perhaps even especially, Protestants were engaged in gnosticism/Christian mysticism in the Renaissance period.
This sounds like a rather Protestant-centric viewpoint.