Honestly, I don’t get this obsession with the tapered line endings 
It won’t make or break your artwork, I believe it will be almost invisible in the grand scheme of things. And I think I was having a deja vu, but you did ask about the same thing a few months back 
Anyway, I also recall this thread, maybe the info here will be helpful too:
Get CSP-like tapered lines with Krita - Resources - Krita Artists (krita-artists.org)