RT Chris Coyier
I heard through the Twitter that Chrome "rewrote tables" in v91.
I saw it dropped, upgraded, and did a quick test. HEY LOOK STICKY TABLE HEADERS AND FOOTERS.
@CodePen
(Works in Safari and Firefox too)
Aleks Totic: @aardrian @chriscoyier It is fixed in M91. We rewrote tables. Developer notes:
https://docs.google.com/document/d/16PFD1GtMI9Zgwu0jtPaKZJ75Q2wyZ9EZnVbBacOfiNA/edit?usp=sharing

https://twitter.com/chriscoyier/status/1400897989842030593