Capture One has released the 15.3.1 update that brings new camera and lens profiles:
New Camera Support
- Canon EOS Ra
New Lens Support
- Sigma 90mm F2.8 DG DN | C
- Sigma 65mm F2 DG DN | C
- Sigma 45mm F2.8 DG DN | C
- Sigma 24mm F3.5 DG DN | C
- Sigma 24mm F2 DG DN | C
- Sigma 20mm F2 DG DN | C
- Fujifilm Fujinon XF18-120mmF4 LM PZ WR
Also, you can now change the aspect ratio behavior in Capture One preferences:
The variant aspect ratio has been introduced in the Capture One 15.3 update. It always shows the aspect ratio of the selected image. If this doesn’t work well for you, feel free to revert to the global aspect ratio.