I've been going in the opposite direction. I use my old Schwab checking account now for bill pay, and I keep a small amount on a new Cash App card for discounts.
I've closed Chase checking, Chase savings, Citi checking, Discover checking, and Discover savings.
Personal spend: Amex Gold, Amex Schwab Plat., BofA PR+CCR(x2), Costco
Business use: Amex Bus. Plat., BBP, Lowes Amex AU, CFU AU
Perks: Delta Plat., United Explorer, IHG49, Hyatt, "Old SPG"
Mostly SD: Freedom Flex, Freedom, Arrival
Upgrade/Downgrade games: ED, BCE
SUB chasing: AA Platinum Select