I've always taken libertarian conservative to mean economic issues are placed on much higher importance than social issues and not necessarily pro abortion. I consider myself a libertarian conservative. I am 100% against Roe vs Wade. The Republican party gets a D- for Fiscal Conservative (only reason its not an F is because of tax cuts--although they aren't permanent) the last 8 years. If a strong economic conservative is not nominated, I will not be voting Republican again next year. Hunter will get my vote in the primary.
As someone who considers themselves a “libertarian conservative” also, I agree with your assesment that this means social issues are less important than economic. I also agree with you that if that is the definition we go by, then the current administration unfortunately gets a D-.