Canon rf 35mm f 1 8 macro is stm vs sigma 23mm f 1 4 dc dn contemporary?

Here is what the site says about that.

From Canon RF 35mm f/1.8 Macro IS STM: Canon RF 35mm f/1.8 Macro IS STM: A macro lens by Canon for Full frame cameras, 35mm f/1.8. Specs - Maker: Canon - Focal length: 35mm (macro) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Canon RF - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Canon RF): as marked, 35mm. - On APS-C (Canon) (Canon RF): like 56mm on full frame; f/1.8 gives about the depth of ...

From Sigma 23mm f/1.4 DC DN Contemporary: Sigma 23mm f/1.4 DC DN Contemporary: A prime lens by Sigma for APS-C cameras, 23mm f/1.4. Specs - Maker: Sigma - Focal length: 23mm (prime) - Maximum aperture: f/1.4 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, L-Mount, Canon RF - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Sony E, Fujifilm X, L-Mount): like 34mm on full frame; f/1.4 gives about the depth of field of f/2.1 there. ...

Quoted from this site's pages.