Before leaving Twitter, consider archiving your Tweets on the Internet Archive's Wayback Machine. https://help.archive.org/help/how-to-archive-your-tweets-with-the-wayback-machine/
This export process will only get your tweets and images. I don't know the best way to grab other people's tweets unfortunately.
A quick and dirty mechanism could be to screen record yourself scrolling through it with OBS, and preserving the video, if that can be done in a reasonable time.