Make two accounts. One is your actual account, and the second is used for those kind of payments. That way you can control the money in the account and how much is available for when payments are due / when stuff changes.
And also, keep bank statements and paperwork related to them.
When my aunt passed away, there were problems with her estate, because she had bank accounts at banks which had been bought out by other larger banks, and bond coupons to cash in, which were somehow involved with banks which no longer existed.
I wasn’t privy to all the details, but apparently she had some bonds, had failed to cash in the interest due from the coupons, and the cashing in process involved a correspondent bank, which had been bought by another bank, so the bank didn’t exist any longer.
If a bank merges into another bank, or is bought by another bank, the transition should be seamless. But if enough years go by, and there’s no paperwork on it, and you have to try to prove to someone at the bank that this account existed and was absorbed from another bank, you will have a tough time getting your money.
On face value separate accounts sounds like a good idea. In reality, unless you make separate accounts for each bill you pay it wouldn’t be practical to cut off every company you pay bills to in order to protect yourself against one. You would be eaten alive by bank charges if they even allowed it in the first place.