I have tried quite a few windscreens, ranging from Sennheiser's, through cheap, to some supposedly high end recommended for aviation.  The latter work best, but none cure the issue.

I have many alternate mics, quite a few wireless, several USB wired, both headset and table.  However, all are either cheap, or old (like my very old Andreas, from my first pass at speech.)  The next try will be a table mic and/or an array mic. I hope that a good large cardiod will be able to capture my voice as I move/sway +/- 1-2 feet, without capturing my nose. Saving up, and expecting to have to try and return.

I had hopes for mics built into the earpiece, or bone conduction - nothing near my nose. However, initial attempts unsuccessful - and then I discovered this forum, and AFAICT you don't recommend any such.

I am still hopeful about headsets.  E.g. the new generation of VR headsets has improved audio input, plus has enough processing power in the headset that good noise cancellation should be possible.

DPG15.6 (also DPI 15.3) + KB, Sennheiser MB Pro 1 UC ML, BTD 800 dongle, Windows 10 Pro, MS Surface Book 3, Intel Core i7-1065G7 CPU @ 1.3/1.5GHz (4 cores, 8 logical, GPU=NVIDIA Quadro RTX 3000 with Max-Q Design.