I also happen to open private/incognito tabs often.
But switching between normal tabs and incognito and PWA (website installed as an app MS Edge feature) also appear in the tab switcher window.
I know that there appears window icon and private icon in the popup window. BUT:

Can this have separate behavior?
as in:

• Option to not display private tabs in the switcher and searchbox (setting in QuicKey extension options)
• Option to not display sites that are pinned to tasbar as apps (when open) in the switcher and Seach box.

PS: I really liked this extension. And my search for the recency tab switcher extensions is complete. Simple, yet powerful.

Hoping the above two options are provided in the settings...