This is absolutely correct.
The GOP didn't care about children held in dog cages until they died. The Democrats had to call them out.
The GOP didn't care about W's war crimes. The Democrats had to call them out.
And, yes, the GOP is making a big deal about Biden, three years after they knew about it, and the EU knew about it, and the IMF knew about it, and apparently some of them signed a letter about it, and all of a sudden "Whoa! That stuff we knew about for years? We've suddenly decided it's worth an investigation!"
The hypocrisy of the GOP is on full display. I completely agree with you.