Currently, Unity has no text support of any type in its path traced renderer, as discussed here. There would certainly be a new audience for STM if you implemented a path traced text solution.

I was confused at first, I thought this meant "drawing text along a path" which STM can do... but after googling path-traced rendering...

I'm confused how to implement this, HDRP already has problems with text rendering in general (I can't do in-editor multipass to render outlines/drop shadows) so I'm not sure how to support this, unless... Would making an edit of STM's shader that responds to lighting make this work...? The current included shaders are unlit, so I'm not sure how they would benefit from any lighting model...? What does STM end up looking like when trying to render with its own shaders, just pure magenta?

I found that some rendering weirdness in HDRP looks different when a game is actually built vs how it looks in-editor, so seeing how that looks might be worth a shot?

So... apologies, I think I'm currently ignorant on path-traced rendering. The solution on that forum seems pretty good, though!