First republic bank imploded so fast because their niche was convenience in not having limits
All the banks have the same problem, they’re holding us treasuries with customer deposits at a huge loss right now. the regulations say they don’t have to disclose the current market value of government bonds like us treasuries, so as long as they never need the money they’ll get it all paid by the government over time, but if they ever do need the money sooner they’ll have to liquidate the bonds at their current market value and never have enough to pay everyone.
How many bank accounts you want depends on you, but two seems awfully few to me.
Switch to a credit union that values your business, they are much more motivated to hook you up with high ACH limits, and I've repeatedly seen them issue loans at rates well below market.