I found an interesting website. It has the Presidential speeches from George Washington through Joe Biden. Looks like the most recent ones are available by video and transcript. No video of Washington, darn it!
https://millercenter.org/the-presidency/presidential-speeches
For example, here’s Bill Clinton’s Address Before a Joint Session of Congress on 2/17/1993: https://millercenter.org/the-presidency/presidential-speeches/february-17-1993-address-joint-session-congress
Clinton gave one of his speeches from memory as something happened to his teleprompter. Can you imagine if that happened to Biden?
“For example, here’s Bill Clinton’s Address Before a Joint Session of Congress on 2/17/1993”
If I recall afterwards it was said it was the longest speech ever.