I haven't used Lyft much, but the times I have drivers have pointedly recommended how much of a tip to give and even handed me a card with suggested tip percent

I haven't used Lyft much, but the times I have drivers have pointedly recommended how much of a tip to give and even handed me a card with suggested tip percentages on it. A lot of them parrot the Lyft line that "tipping is always optional and always appreciated."