I attached mine to my siding and it’s working really well, and I’m in a high wind area. I got this one in case I didn’t get enough sun below the soffit and had to attach it to the gutter instead. Highly recommend.

HOLACA Gutter Mount for Arlo Pro... https://www.amazon.com/dp/B07Q2SY7JC?ref=ppx_pop_mob_ap_share