Simplifying finances with partner

Wife and I got married in September last year. Closing on our new house this upcoming week. Want to now simplify our money.

We have been previously using a joint credit card for all things together but have our own for separate spending.

That’s currently the Amex Gold.

For those who are higher earners / savers thy are married and both working - what does your set up look like?

This is my thinking:

All money deposited into shared checking account - this is bills, shared costs, etc.

From there we will have a shared monthly allowance that transfers to separate bank accounts.

Other money will be transferred into investment vehicles - brokerage, HSA/IRA AND HYSA

Then for credit cards:

1 shred (maybe the Amex hold still or a Chase reserve or something)

1 separate CC for each of us - Chase preferred?

Just trying to simplify things for us, while we do save for our future and invest well am just not have money problems together.

Interested in hearing how you break it down, what accounts/credit cards yall use.