I'm still holding on to the OnePlus 10 Pro myself, and deliberately keep it on Android 12, IMHO the last version of the OS that gives users sufficient freedom to do what they please. The newer Google APIs are quite restrictive.
Unfortunately my banking app and e-wallet (that is a must have where I live) are both not compatible with Graphene, so I'd have to have a second phone for those, and especially for the e-wallet, I'd need to carry it around at all times, which is a bit of a no-go.
Currently looking at the Motorola Edge 50 Ultra as a replacement when mine fails eventually, or maybe the Edge 60 Ultra when it comes out towards the end of the year. The 50 Pro is a huge step backwards, so no deal.
And OnePlus unfortunately takes quantum leaps backwards and has become yet another China brand.
You'd have to prove that the salesman said exactly that, and without a record it's at best a he said / she said situation.
I'd be happy to see Musk jailed though, he's definitely taunted self driving as fully functional.