Without knowing when the Senate will look at this and assuming after inauguration, I can see this as a carrot to get out youth vote in the upcoming Georgia senate run-off elections.
The House has shown the ability to pass it, which means that if the Dems can flip the Senate (using the GA election), then the House can pass it again next session and have it go to a more favorable Senate. This was less about getting it through Mitch McConnell's Senate, and more about signaling voters: this is what we can do if it's no longer Mitch McConnell's Senate.