Exactly this! Incognito mode came about for those guys and gals trying to keep family members from knowing what they were up to. That's all it ever did.
Back in the day before incognito was a thing you learned how to use a portable web browser off of an encrypted thumb drive. No cookies and no cache for snooping parents.
To keep things truly private you still need the encrypted drive but need to be using Tor.
Then you need to burn your house and the internet to the ground.
@tibi @cjust when I worked on a browser (which luckily recedes into history ever further) the private mode we built had truly ephemeral data. Pages loaded never hit the disk, no writes were performed to any persistent store, and any and all telemetry was disabled across the entire product while it was enabled.
Seeing malfeasance like this from my peers is rage-inducing and strips away user trust.