Got no reply to this in the Reader community (asked 5 days ago) so I feel justified posting here:
When you start the installer for Adobe Reader (the free version) and click "Show information about the publisher's certificate" it reads: Valid from 19/22/2020 to 22/12/2022.
This may not be a big deal (at least Windows doesn't give a warning) but it does not inspire confidence either.
this is an old issue. eg, https://community.adobe.com/t5/captivate-discussions/trusted-publisher-certificate/td-p/8465445
anyway, if you don't trust reader, don't install it. and/or make a suggestion to adobe (these are user forums), here
for applicable apps, you can make (some) suggestions to adobe here, https://helpx.adobe.com/ie/x-productkb/global/how-to-user-voice.html
for others, use https://www.adobe.com/products/wishform.html
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