What does this mean?- Radiosport RS55SL "This headset is not suited for HF radios"

I have a 6600 and PGXL in a room with all other electronics such as Internet modem Wi Fi router and various "hub" for cameras, alarm, smart switches etc. and use a Heil Proset (HC6 element I think) and a separate PTT into a Maestro in another room of the house. I am exploring the use of SDR on my PC (Dell Optiplex 7070) to free up some space on my desk. (for more paperwork)

I am looking for a good headset to that will plug into the headset jack of the PC.

Is it as simple as using an adapter to change the 2 plugs on my Heil into a single plug for the PC and just use the mouse to tap the MOX button in SDR? I have read some comments here that the typical consumer electronic headsets have poor microphone quality.

What recommendation would you have to further my plan to migrate to the PC?

Jeff AA0ST