Don't start me. Successive governments have not been able to resist monkeying about with the "once-in-a-generation" reforms to pension limits introduced by Gordon Brown. Based on an annuity rate of 25, £1m is £40k pa or £3,333 per month. More than enough for most people to live on and more than most will receive, but hardly "super rich". Quite a lot of nurses, teachers and railway workers will be above that level... And that's in today's money. It's been frozen for multiple years so in real terms that £40k will become £35k or even £30k...Feel a bit on the high side compared with the £4-£5k figure referenced in https://www.thetimes.co.uk/money-mentor/article/100k-pension-pot/#:~:text=Or if you're wondering,for an annuity or drawdown?
It slightly surprises me in simple terms if I've understood correctly that the maximum income anyone can have from a pension (using an annuity) given the effective £1m pot limit is around £40-60k (on which tax is still payable). Sure for the vast majority of us that would be absolutely fine, and we wouldn't have that much saved up anyway, but it does feel a bit of a constraint for the very top earners - including those within the railway industry. Hence driving investments in property simply as an alternative place to put savings once pension fund contributions have maxed out. Or premature retirement as per comment on GPs earlier.
Some will say "you only lose if your plan does well" but it's not that simple. If you're in a DC scheme where investment values fluctuate you end up with penal tax on the upside but full exposure on the downside!