In the early 2000’s when violence stalked the country, when farmers and intellectuals and artists were fleeing the country, Western politicians did take severe exception to his methods of redistributing wealth - particularly land.
Following the 2 farcical presidential elections he lost the credibility even of being hated. Politicians are hated because they are effective at achieving their populist or ideological ambitions. Mugabe was so ineffective he had to rely on South Africa’s ANC to shield him from international condemnation and to help him cling to power.
The West is now simply indifferent to Mugabe and Zimbabwe. The West has bigger fish to fry and bigger problems to solve than the activities of a decrepit old man running down a small inconsequential country.
At best he is seen as a senile and tragic joke; a caricature of the kleptocratic African dictator.
Mugabe achieved immense wealth ( mostly hidden) for himself, his family and those who unquestioningly supported him.As a man who lived much of the ‘war of liberation’ in a villa on the Mocambique coast near Maputo, and never handled a firearm, he achieved the reputation of a ‘fearless fighter’ and a ‘war veteran’ who ‘fought in the trenches’ and he did this solely through his superb manipulation of propaganda.
There is no doubt that Mugabe was (and probably remains) a master strategist capable of fooling just about everyone.
Everything else he accomplished is negative, so I doubt they would qualify as ‘achievements’. Ruined the economy, ruined agriculture, ruined education, and even cynically ruined the valuable things in African culture.