There are a lot of suggestions about digital vs warmth, but the main goal is you get a result that you like. If a preamp does it, cool, you’re done.
There are ways to do it in the box, and that’s why these suggestions are coming. But I think with all of them is an unsaid sort of “if you’re willing to try this” nudge of positive help.
At the end of the day, whatever gear gives your sound and you have that sound now, that’s the best way to do it. But there are always other ways, and some speak passionately about it, which may end up sounding curt or judgmental. Many ways to reach a similar end result. Do what works!