I've seen just about everything that Uber gets shamed for happen at Lyft: a focus on maximizing revenue by short-changing drivers, sexual harassment, political decision-making structures that make everything a question of who you kiss up to, pressure to work long hours whether or not its productive, management by adult children. The "culture" of Lyft has become a marketing slogan and the founders have made that clear.
Side note: As an outsider looking in, the logical approach now is to slash the regional offices pretty drastically, so I'd avoid taking a Lyft job that's not at HQ.