When I first click a link to an ESRI community post (e.g. from my email due to particular community subscriptions), the link does not take me to the correct location. For example, I received a subscription email which linked to this post: https://community.esri.com/t5/arcgis-survey123-questions/transfer-data-from-old-to-new-survey/m-p/10...
However, when first clicking on the link from my email, it took me to https://community.esri.com/#M31907 which then just displays the latest activity. I have also experienced the same issue when trying to access community posts from web searches (e.g. Google).
It seems that once it has connected to a post correctly (i.e. the first link rather than the second), all other community post links work as expected.
I am using Google Chrome Version 87.0.4280.141 (Official Build) (64-bit).