@MediaActivist Yes, @Vivaldi is my main Browser to. It ticks nearly all of my boxes.

One feature request: It would be great do habe an option to 'switch off' any caching for redirects and HSTS and thenlike for certain destinations.

I have a lot of device-configuration to do, and for instance if device a sends a permanent HTTPS: redirect for 193.168.1.1, and device b dies not have HTTS 'on' per default, it's always a hassle with private-tabs for that matter.
Especially if device a has sent funny headers like hats before