As an aside, the Brave browser has an option to use Tor in its Private windows function. There's a straight private window and a private window with Tor, you use CTRL+SHIFT+N to invoke a straight private window and ALT+SHIFT+N to invoke a Private Window with Tor.
Since Brave is Chromium based, and there are folks here who've said they're using it, I can see nothing that would preclude using the Private Window with Tor just like a typical Brave window.
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Brian - Windows 10 Pro, 64-Bit, Version 1903, Build 18362
The color of truth is grey.
~ André Gide