Hello,
i was told by gog support that achievements for poe are not released now. Because gog support do not clarify (it´s only one sentence...) i do not really understand their meaning. So far, if achievements are visibly in galaxy you can gain them (for me that is true with two other games). But the feature "achievements" itself is not activated in the client - thats true. Maybe thats what gog is stating...but if you search in gogs ticket system "mantis" you will find the same staement for eq. witcher 2: "Sorry - the support for achievements to POE was not yet released " (thats a quote) . I opened a ticket at mantis & also told them about what you both are discussing, that mods &/or console maybe could cause issues - but gog support did not answer to that. Well, i guess we have to wait until they release a client version with activated trophy feature & see if gaining achievements is possible then (i´ll bet yes).
This is a gog mix with games that have achievements: https://www.gog.com/mix/games_with_galaxy_achievements