From what I've read, these types of devices tend to be one-way.

Edit: This one is advertised as doing what OP wants. https://www.amazon.com/dp/B09JSYP8VR?ref_=cm_sw_r_mwn_dp_FD71QW60CB7P0NWT4ECT I linked it in a previous comment which you may have missed.

There's nothing new in that regard. thunderbolt and USB-C still use display port protocols, so you need an actively powered adapter that can convert the HDMI signal to a more display port friendly signal.

Is your thunderbolt port powered and version 3 or higher?

https://www.amazon.com/Club-3D-Adapter-Converter-CAC-1333/dp/B09JSYP8VR/

If it does not provide adequate power you would need an adapter with its own power source;

https://www.siig.com/hdmi-to-usb-c-port-4k-60hz-converter-adapter.html

Short of a miracle HDMI to USB micro B device, you could use an adapter like this to turn your type-b input to a type-c

https://www.amazon.com/Poyiccot-Micro-Adapter-External-Portable/dp/B09LS3728B/

But HDMI doesn't natively support Type-c ports, as they use display port protocols. Which is not bi-directionally compatible with HDMI.

So you would need a second active adapter to convert the signal from the dock. Like this;

https://www.amazon.com/Club-3D-Adapter-Converter-CAC-1333/dp/B09JSYP8VR/

And then use a small USB-C cable to connect it to your displays new input.

I'm not totally versed in USB micro connections, but it is a v3.2 super speed port. So this pairing of adapters SHOULD work.