After trying various flags, this worked - enter in address bar
chrome://flags/#interest-feed-content-suggestions
and in options disable and relaunch chrome
Edit
It'sAlso see Chrome - how to swipe to dismiss articles on home page for a shame but you can't do that any more from Chromefix for version 84.0.4147.89
.
Google says they won't fix it as mentioned in the Chromium bug report ( Chrome does not maintain separate bug reports)
Swiping was indeed removed with the latest update due to usability reasons and it being difficult to interpret as a user signal. So this is working as intended.