I’m dedicated to studying Japanese for 1 hour a day for a year, but just read an old duolingo post that duo isn’t great for learning basic conversation? Is this true?

Has anyone who has taken Japanese Duolingo courses for a year, confirm if the old post on this sub is speaking the truth? I want to set myself up for success and add more resources to my learning process in order to be more proficient in the Japanese language a year from today!