The 111th Congress was the only time in the last 20 years Democrats had a filibuster-proof trifecta and that was for 72 days. [1]
That was the government that gave us the Affordable Care Act aka Obamacare.
The other Democrat trifecta was the 117th Congress[2] but if you look that's only with independents in the Senate that caucused with Democrats. Obviously also not filibuster proof.
That's the government that gave us the CHIPS act.
Think about how often parties are in power and they can't even fill appointed positions because of partisan opposition during confirmation, let alone pass legislation.
[1] https://en.wikipedia.org/wiki/111th_United_States_Congress
[2] https://en.wikipedia.org/wiki/117th_United_States_Congress