I had a similar noise that I thought was coming from the front end but ended up being the rear driver side wheel bearing. replaced both in the back and back to normal.
I have my 4Runner in the shop for diagnostics. The same noise you have is getting louder and I'm concerned it is a bearing either in the front differential or the wheel bearing about to go out. Will let you know what they say.
Please do follow up! Eager to see what it may be
They couldn't find it. They said it was my supercharger (wrong). So, dealership is no help.
Ooof. Did they charge you for that???
Ooof. Did they charge you for that???