In your current situation the only real impact that the OBBBA has on you is an increased standard deduction now that you're 65. Since you're waiting until 2027 to draw social security then it won't be until then that anything will change.
And all of your tax deferred investments don't come into play until you're 75 because of your birthday (which is a change due to the OBBBA) so you don't have to take required minimum distributions until then.
As far as estimated payments go as long as the folks managing your pension are pulling enough out then you should be covered just fine. Once you start drawing social security you can have tax withheld from that instead of making estimates. And then once you start pulling from your IRAs then you can have tax withheld from those as well. So you shouldn't have to do estimated payments.
TurboTax has some additional tax tips for retirement here but it sounds like you are already doing everything right!
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