

A lot of the time these apps will have heuristics that will reach back out and so you will see network connections occasionally.
Without knowing more about this application, I don’t have the right context to evaluate whether or not I would trust something like that, so it’s gonna be up to your comfort level. But, if clamav came back clean and so did your other virus software, I would assume it’s not malicious traffic.
i mean, ya have their metasearch engine, is technically closed source, but they open source all of their other stuff, and, searXNG has to be hosted by yourself unless you’re willing to trust some rando out on the internet that’s hosting their own version.