Issues with missing signatures when updating

[Liam Proven]

On Fri, 14 Aug 2020 at 21:38, Trey Sizemore <trey at fastmail.fm> wrote:
>
> or some needed packages, like wavebox, opera, chrome, I installed the .deb versions on Pop!OS.

How?

Did you download the DEBs and just install them directly with dpkg, or
did you add the repos and install from there?

My suggestion -- completely remove the repos and add them back, one by
one, adding the keys at the same time, as directed by each product.

Very few Linux apps are smart enough to add their own entries to
/etc/apt/sources.list or /etc/apt/sources.list.d/

Google's will. MS's Skype and Teams will. That is about all. For the
rest you need to do it manually, yourself.

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