Nick Land (of the CCRU) supposedly recently "opened fire" on Moldbuggian hard-ons for monarchy, I'll need to check that out... (Likely related : Unabomber's criticisms of how the "left" cannot avoid becoming the tool (in both senses) of "the System" when taking power ?)

Found it (but not read yet) : from p45 on :

https://agorist.xyz/files/Agorism_XXI_I_2022.pdf

I'm guessing that they were always fundamentally opposed anyway, Land being of "bottom" and Yarvin of the "top" sensibilities (in the political compass sense) ?