I know for a fact whoever developed the GoG launcher isn't capable of adding this in.
Source: half of the connectors to other game services don't work, and they haven't bothered to make their Mac app function in literally years (and if asked about this they tell you to "use the website").
When you try to change views in a shared calendar, and it automatically switches to your personal calendar in the other view, causing you to go back to the first view, change calendars, then do the exact same thing again.
If you have a MacBook, Swish is by far my most recommended application. Makes window management actually enjoyable. Also I think I used Better Touch Tool to set up custom 3 and 4 finger swipe actions / clicks.
I know for a fact whoever developed the GoG launcher isn't capable of adding this in.
Source: half of the connectors to other game services don't work, and they haven't bothered to make their Mac app function in literally years (and if asked about this they tell you to "use the website").