Pick a session and drivers, then click Plot to graph the chosen metric lap by lap.
Compare cars through a single lap, aligned by distance travelled so you can read them corner for corner. OpenF1 has no steering-angle channel, so that one can't be shown.
Each driver's gap to the race leader, lap by lap. The leader is whoever is actually ahead on track, even if they aren't ticked. Most useful for Race and Sprint sessions.
Pick a session and drivers, then click Plot Race Trace.
Each ticked driver's lap times on their own graph, with the background shaded by the tyre compound in use.