Fetchmail is standalone MRA (Mail Retrieval Agent) aka "IMAP/POP3 client". Its sole purpose is to fetch your messages and store it locally or feed to local MTA (Message Transfer Agent). It cannot "read" messages — for that use MUA like Thunderbird or [Mutt](/doc/Mutt/).
Assuming you have more than one account (safe assumption these days), you need to spawn multiple fetchmail instances, one for each IMAP/POP3 server (though one instance can watch over several accounts on one server). The easiest way is to create template systemd unit and start it several times. Fedora does not supply any, so we have to write one anyway.
Then shutdown TemplateVM, start AppVM and create directory `/usr/local/etc/fetchmail`. In it, create one `.rc` file for each instance of fetchmail, ie. `personal1.rc` and `personal2.rc`. Sample configuration file:
Then `chown -R user:user /usr/local/etc/fetchmail` and `chmod 600 /usr/local/etc/fetchmail/*.rc`. **This is important**, fetchmail will refuse to run with wrong permissions on its rc-file.