If you are in a technical role you are pretty much safe. Everyone else should be cautious. I am not saying cuts will happen but there is a ton of flux at Lyft right now and things will continue to shift and mold from the business standpoint.
This means that some departments will consolidate/change, managers will change, P&Ls will change and there will people who will not fit into whatever that new org structure will become. With this in mind, just be cautious and nurture your network – you never know when you’ll need them…