I am under the impression that the best antivirus programs that work without account is Eset and Kaspersky.
Is there is a better solutions?
Damn. I would probably try a more mainstream distro for Optimus support, like Pop_OS! or Debian/Ubuntu with non-free repos enabled.
I remember Bumblebee was a thing back in 2013, but it seems that it hasn’t been updated since then: https://www.bumblebee-project.org/