If you are running legacy hardware (Windows 7/8), or you hate the "new look" ribbon of the 2023+ versions, the 2020 edition is stable, snappy, and shockingly feature-complete.
If you download it today, you aren't getting "old software." You are getting the last version of Power BI that didn't try to sell you a Premium license every five minutes. If you are running legacy hardware (Windows 7/8),