How important is proxy location?

Hey, I'm a first timer who's figured out a couple niches and am trying to get the requisite accounts on IG/FB set up. I've heard that 2 accounts/proxy is usually a good practice, and now I'm looking into purchasing proxies. I know I need an IPv6, as that's my IP, but my question is whether or not the proxy location matters. IPv6-proxies.com looks like it has a pretty good deal ($10/10 ipv6 proxies) but it says they're all in one location. I guess my question is whether that's important or not, and if so, how much so?

why dont you use ipv4 proxies ? you can use ipv4 from multiple locations for instagram and facebook without problems

For IG: is important as you can do geo-targeting.

For FACEBOOK: you can do local searches and market in local groups (as facebook goups are a great marketing channel).

You use Ipv4 it does not matters and even more camouflage as most of the world is using it just you need to find a best Dedicated proxies provider that works with IG.