Not exactly. Per the article only 5.7 bil of the 80 bil has been spent so far. Also per the article, 20bil has also been cut from that total in budget negotiations. And, not all of that goes to tracking down mil/billionaires. An unspecified amount goes to modernizing their systems and improving their ability to respond to calls from taxpayers.
I imagine there are plenty of things not listed that they are doing to improve their resources with the money. Id wager that given time we'll see larger returns on investment as they get through their backlog of unpaid taxes. But that's just my opinion.
Just to clarify on this, the old "Steam family share" was limited to 5 accounts. "Steam families" allows 6 accounts, which is an increase. It also doesn't require the inconvenient logging into multiple accounts on everyone's individual device, which was annoying.
The big thing I view as a downgrade is that it doesn't allow sharing outside of your household. My brother and I have used family share for years even though we don't live together anymore. However, he could not join my "Family" today because steam identifies him as being in a different household. Thankfully, family share still works for now.