I haven't tried the Loxia 35mm f2 but this guy mentions it whilst reviewing the Voigtlander...
https://admiringlight.com/blog/review-voigtlander-35mm-f1-4-nokton-classic-e-mount/
Amongst other things he says...
"If you do want a more modern rendering lens, be prepared to both spend more and carry around a larger lens. One of the nice alternatives is Voigtländer’s own 40mm f/1.2, which is $300 more expensive, about twice the length and twice the weight, but is still fairly compact for such a lens, and while it’s a slightly longer focal length, from samples I’ve seen it’s also much better corrected and is a more modern optic.
Otherwise, you’re stuck with the giant 35mm f/1.4 lenses, or the also less than perfect, but also quite pricey (and slower) Loxia 35mm f/2. In fact, the Loxia and the Voigtländer share a fair bit in how they draw, with nervous bokeh wide open. The Loxia is a touch sharper, a little bigger and a lot more expensive at $1,299, and its relationship to price was why I didn’t really feel it was worth a purchase when I reviewed that lens. However, the Voigtländer’s $500 lower price and full stop faster aperture make it a lot easier to overlook flaws and embrace the drawing style."
I agree with quite a bit he says in that review and if he's right about the Voigtlander and Loxia being similar at wider apertures I'd take the Voigtlander every time as it at least gives the option of shooting wider than f2 if there's no choice or the subject suits the bokeh.
I think I could be tempted to buy another 35mm if it's a compact AF f1.x or a compact and more modern rendering MF f1.x which is sharp into the extreme corners when stopped down (the Voigtlander isn't) but at the mo neither seem to be available so the Voigtlander will be my only FE mount fast 35mm for now.