Not really a black market for cigarettes here but you can grow your own tobacco legally if you really want to go down that road. Smoking tobacco in younger generations is very rare but vaping on the other hand is very popular. The government was touting a “smokefree by X” date that kept moving back as the dates came closer.

Is this a good enough reason for you to swap? https://www.eff.org/deeplinks/2021/12/googles-manifest-v3-still-hurts-privacy-security-innovation