> Are there any side effects of leaving Immich public ?
Yes: it is necessary to share selected albums through public URL.
There is a project, which proxies album requests to a private immich instance, if one doesn't want to expose it: https://github.com/alangrainger/immich-public-proxy
There is a project, which proxies album requests to a private immich instance, if one doesn't want to expose it: https://github.com/alangrainger/immich-public-proxy