Photolab is good, except for these few things

In this forum, there’s a fairly long history of reported problems with Canon color rendering in PhotoLab. See here, for example:

It might help you to try different options for the Color Rendering adjustment palette, to see what produces the best results for portraits made with a Canon 5D. The default renderings you’re using are, as you say, too dark and not protecting the flesh tones properly. Fortunately or unfortunately, the options you have for color rendering are vast.

If you’re not already doing so, try experimenting with Smart Lighting adjustments, too.

Output sharpening complaints also go back a long way. You might want to look at the following feature request from 2020, which to date has accumulated 71 votes and many comments which might be helpful to you: