As for the earlier one about banks limiting the amount you can hold in any account, it's in the T&C's of most banks. There is no mention of freezing, as is mentioned in the title of the video, and you will never be charged if you transfer any excess out when requested to do so.
So, basically, the videos are horse shit.
These are new T&Cs. Surely, you can understand that any bank thrives on having your money, it's their basic business after all. So, why would any bank suggest you might have too much money in your account? Supposing, in the future, I have £40k in my bank and they then send me a letter saying that the maximum is £30k. Do you really think they would ask me to withdraw the "excess" £10k?
No. They would either seize it or convert it into the Central Bank Digital Currency system (and the Bank of England is trialling such a system), over which the central bank would have control over your expenditure.
You may like to dismiss this all as horseshit – it's your prerogative but don't complain if it all comes true.
Not just control of your money but control over what you buy with it.
"I see you've already flown abroad this year Sir, so no further flights will be allowed this year due to net zero".
"I see you've already consumed meat this week Sir, no further meat allowed for a month due to net zero".
This may sound dystopian but......