Here are the yields of a few familiar money market funds as of 9-27-2022: SWVXX @ 2.70%, VMRXX @ 2.68%, VMFXX @ 2.66%, SPRXX @ 2.64%, and SPAXX @ 2.39%. Feel free to add your favorite money market fund and its current yield to the list.

It seems they are going up daily!
1 Day 7 Day 30 Day
2.81% 2.74%
(fidelity)
And 7 Day Yield 2.78% at yahoo
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As long as the money market rates beat my banks & CUs there is no need for banks & CUs.
Sure, I could get a bit higher rate elsewhere but I am not opening new accounts over & over
And of course, there is no concern over 6 transactions per month
And I buy my treasuries via fidelity
It's a bit of a pain buying SPRXX every time I get a dividend or interest as it seems the lower paying SPAXX is what I get unless I take action & buy SPRXX

SWVXX: https://www.schwabassetmanagement.com/products/swvxx
VMRXX: https://investor.vanguard.com/investment-products/mutual-funds/profile/vmrxx#price
VMFXX: https://investor.vanguard.com/investment-products/mutual-funds/profile/vmfxx#price
SPRXX: https://fundresearch.fidelity.com/mutual-funds/performance-and-risk/31617H201
SPAXX: https://fundresearch.fidelity.com/mutual-funds/performance-and-risk/31617H102