Answer
The actual timeframe may be significantly longer than the advertised two years. To obtain Argentine citizenship, you must not leave the country for two years, but in practice the process can take up to six years or more.
The main reason is not just the residency period itself, but the procedure that follows. Until recently, Argentina’s process involved the courts: they handled citizenship applications, and the timeline depended on which court was assigned the case, the evidence of residence, the court's workload, and the specifics of the individual case.
Therefore, the formula "Argentina in two years" describes only part of the process. When comparing Argentina with Uruguay or another country, it is necessary to consider not the date when applying becomes possible, but the entire process: residence, documents, filing, review, decision, and subsequent passport issuance.