Integration with Google Assistant smart speakers is the main reason I would want to use Google Tasks instead of other Todo solutions. In particular, asking Google to add groceries to my shopping list while I’m cooking, so that I don’t need to bring out my phone and tap it in manually since my hands are occupied or dirty.
But the integration has sucked for so long that I had pretty much given it up. Maybe if it really actually works now (instead of putting my tasks into various other Google services), I will give Google Tasks another shot.