The swings even out a little bit more if you look at them on longer scale terms than just 2016-2020, such as 2012-2020, since Trump's massive rural gains were largely consolidated in just one election cycle, but Democratic gains in the educated suburbs were more spread out between the two cycles.
My personal favorite swing map for tracking the longform shifts between college educated whites leftward and working class-whites rightward is 2004-2020, which really highlights the collapse of metropolitan Republicanism and heartland Demosaurs on a wider timeframe. This also has the added benefit of washing out noisier data, like Obama's freakishly strong performance with working class whites in the Midwest for a Democrat or Trump's big in-roads with Hispanics since Bush performed even better nationally with the Latino vote.
Hidalgo, Webb and Cameron are interesting
