OK bro idk if you understood what my context for the question, I have a X670E Gene Ryzentosh in my household right now, and I can't go buy a TR card just like that, I was wondering how far the community has gotten with onboard TB4/USB4 controllers. So yeah your solution is known to me and a good one, but completely unrelated to what we all are discussing.
I think I had a reasonable command of the situation and my situation was spot on:
Apple has never used Maple Ridge in a real Mac, and quite possibly never will. MacOS has no driver for Maple Ridge. All efforts to spoof it as Titan Ridge have failed, and the Maple Ridge firmware has not yet been extracted. Save for the "minor miracle" with Asus Z690 boards (Asus only) with Big Sur (Big Sur only), which is not relevant to your Ryzen system, Maple Ridge has never been made to work to macOS standards (hot plug) : No Z590/Z690/Z790/X670 motherboard; no Maple Ridge AIC.
Cold plug is possible, with no guarantee it won't break at some point; this is far from optimal—but if this's workable, good for you.
So the short answer to your question was: No, Maple Ridge doesn't work as a Mac user would like.
You may not like the message, but don't shoot the messenger!