What is the crowd's opinion of Liferea?
From 3.5 billion comments

➔ Liferea website

By popularity online, this Service is:

#34 in RSS Reader apps

2 reviews of this app found across the web:

Remote content is DISABLED by default, and never enabled.

I suggest not using browsers and email clients for RSS, I suggest separating it into a separate RSS reader such is Liferea https://lzone.de/liferea/

Partition your credentials, actions and data.

If you want to go further, look at https://www.qubes-os.org/ for better isolation.

Curiosidade: há um tempo atrás era popular usar leitor de RSS pra isso, por exemplo o Liferea. Este é o feed Atom do blog.