2021 MBP 14 has this issue for me with the stock charging brick (NZ - which has 3-pin sockets): but Apple don't ship the stock charging brick with an extra exte

2021 MBP 14 has this issue for me with the stock charging brick (NZ - which has 3-pin sockets): but Apple don't ship the stock charging brick with an extra extension to the socket, so the transformer/brick plugs (via a corner adapter) directly into the socket, which isn't grounded. If I replace the direct corner adapter of the brick with an older (from a 2015 MBP 15) extension which is grounded, i.e. you can't then literally plug the charging brick directly into the power socket, there's an "extension" chord in between (and not just a generic one, this is Apple specific for the connector to the brick), the issue goes away.