There’s some clever thinking needed here.
Pots are, by design, hiding their value from your current account balance (as in, move money into a pot and it is ‘debited’ from your current account balance). So if the pay-from-a-pot feature is launched and it is literally ‘pay-directly from-a-pot’ then your current account balance wouldn’t update at all when the payment happens, only the previous ‘debit’ to you pot would be reported in your current account.
Budgets work off categories, so budgets shouldn’t be affected. Bills pots work differently too, so they shouldn’t be affected. Left-to-spend should also be unaffected. Hopefully, for example, it’ll allow you to allocate ‘Subscriptions’ to one, or more pots and you’ll have to put some money into the pot(s) to cover the upcoming payments.