VyOS for performance but if you don’t use a network device CLI regularly and it’s for home use OPNsense.

OPNsense comes with a lot of pretty sane defaults for a gateway/firewall, VyOS you really do everything from scratch, as it’s more geared towards enterprise or service provider.

VyOS does do well as a gateway/firewall and there is a lot you can install to extend features for stuff like what OPNsense has to the point that I have had 0 things I couldn’t do when I migrated a few years ago.

Try looking up “peddlers permit” aka hawking, canvassing, and soliciting. I have seen it be any or a combination of the terms when codified.

Depending on how your ISP is doing IPv6, the typical way would just route the entire prefix to your router, and the ISP would not know how many addresses are used, in the sense that there is no table (no neighbor discovery is needed). If your ISP is keeping data of flows from your prefix then it could start counting unique addresses, but there isn’t really good a reason to and it wouldn’t be accurate. Some devices pull and use more than one address, and quiet devices might not get picked up by flows which are typically sampled at a ratio.

Depending on the jurisdiction, soliciting often requires a permit and conditions of the permit include obeying no soliciting signs. Failure to obey typically means the permit can be revoked, or it could be a criminal offense. Could be worth looking into that for your area.

New York State’s civil service pension/retirement system is still like this. Including holidays.