Yes, but FYI see
- Multiple snowflake proxies behind same IP?
- Is running the extension on more than one browser at the same time redundant/pointless/harmful? (#75) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake WebExtension · GitLab.
On multiple machines or the same machine with several IPs? The former is not possible with the current state of Snowflake codebase, the latter is possible (a proxy with default settings is gonna do it automatically actually, thanks to WebRTC).
Well, yes, but I actually haven’t seen a thorough explanation as to why. Also see Obfs4 or snowflake bridge or both.
If you have an unrestricted NAT, your proxy will use more bandwidth, because they’re more in-demand. But anyways, it’s unlikely, given that you host only one proxy instance and it has default client polling period (see Is running the extension on more than one browser at the same time redundant/pointless/harmful? (#75) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake WebExtension · GitLab on how polling works).
See