Capture One has recently introduced several updates for Leica users (see this dedicated page and check also this, this, and this blog posts). The Capture One 21 Leica support list can be found here.
Avalanche Software recently released Avalanche for Capture One 1.0 that allows users to migrate/import Aperture, Luminar 4, Luminar AI, or Lightroom photo catalogs/libraries into Capture One (more info available here).
Here are a few videos explaining how Leica photographers can benefit from Capture One Pro:
