I used to use Capture One in version 20 and 21 if memory serves. I even wrote a review of it on this very forum.
I’d recommend getting to grips with Color Balance first and foremost, and stick with Sigmoid instead of Filmic or AgX for the time being. Color Equalizer is your color panel, and Tone Equalizer is your HDR panel.
A few notes:
You don’t need to fear “exposure” in Darktable. It won’t blow out your highlights. Thus you don’t need the “highlights” to save the highlights, and don’t need “Shadows” to raise your midtones. Just use exposure for the midtones, and adjust with tone equalizer for your desires tonal balance.
You can easily build your own “speed edit keys” with Darktable’s shortcuts.
Once you have a rendering you like, save it as a style. Darktable doesn’t start with punchy colors by default, but with a flat profile. So build a style you like, and use it as a starting point. In particular, increase contrast and saturation (in color balance to start). Darktable does not have default styles, but each module can have a default preset (per camera setting!). You can use that to make yourself an automatic starting point.
If you need specific film simulations, build them with a color checker, a tone curve, and the color lookup table module. (This can be done manually or automated, but that’s perhaps for later). There are more sophisticated methods, but this one is quick and easy.