I think I understand the recent Q posts. Q wasn't linking the Obama Foundation twitter feed to highlight premature uploads of George Floyd on May 17. He was linking it to show that the Obama commencement speech itself had hidden comms to bad actors on what steps to follow next since the PLANdemic fizzled. Watch the speech and listen for example roughly 3:05 on.

https://www.youtube.com/watch?v=sTFWC1PiLVE