https://www.lexus.co.uk/owners/about-my-lexus/manuals
You can download your full manual from here. That's where I just downloaded your one from to look up your query.
There is a Jam Protection Function (see your owner's manual as it goes into detail of how it works) and also I have forcibly stopped my power rear door from closing by pushing against it and it definitely stops
I would echo that maybe the seat position is not correct. I have owned 2 RX450h f-sports (2019 and 2021 so the same model as yours) and never had a problem with being uncomfortable.
Yes - this is definitely your DashCam. You can turn off the jingles using the app on your phone that connects to it I believe (I am assuming it is a NextBase one that Lexus provided)
Mike - it is the "Title" column on that screenshot that has to have the Track Number at the start.
Have a look here: https://community.mp3tag.de/t/adding-track-numbers-into-name-field/6220/4
Halfway down the page there are some example scripts that need to be run in the mp3tag software to update the fields - when I did it ages ago it was fairly quick process
Bizzarre.
All my cars (2006 GS300 SE, 2016 GS-F, 2016 NX300h Takumi, 2016 RX 450h f-sport, 2021 RX 450h f-sport and 2022 UX 250h Takumi) all had/have to be manually changed.
Hopefully you can see on this screenshot of the manual that the scrollbar goes right to the top and there are multiple "Traffic Events" trying to be shown.
I believe the symbol moves up and down the screen depending on how close you are to the actual delay or how long the delay is so it could well have been higher up the screen - i.e. it uses up all the space on the screen between boxes "E" and "D"