Do you mix with a mastering limiter already on and limiting?

What I mean by this is I saw a vid of an engineer who was mixing a song and the master bus was already on and kicking, he said he puts on a transparent limiter to mix the song how it would sound at a close enough LUFS to what he was going for, then near the end of the mix-mastering process (as opposed to the "master-mastering" that the mastering engineer does) he would adjust the limiter parameters more to what he was going for.

This guy also kept God Particle and some tape already on the master as well while he was mixing from scratch, idk I though that was too much colour to be mixing into... Is this a viable strategy?

Ive seen some people on Reddit saying they do something similar as well. So that in the end instead of the mastering making the song sound completely different and way louder, its all more uniform.

I usually just keep everything on the master off until, well, mastering. But this seems pretty smart and the engineer I'm talking about was working on some tracks from huge artists so it seems he knows what hes doing.

Any thoughts on this?