I agree, i created a topic about this in 'Suggestions'. But its indeed more a bug than something that's 'just missing'.
1. A detailed description of the issue. Please include any error codes here.
The Ai in f12020 does not weave behind the safety car and in the formation lap to heat the tyres. The ai did weave in f12018 and f12019. And it looked realistic! And when the ai doesn't weave, there tyres should be cold and causing problems at starts and restarts.
3. What version of the game you are using (Shown on the start screen in the bottom left corner of the screen)
5. What are your replication numbers? Minimum test attempts are 4. Please also add EXACT replication steps for us to try too.
Every race I did in Grandprix mode with the formation lap and driving behind and other car in the Safetycar queue.
6. What troubleshooting have you attempted? Please always try to attempt to fix the issue
I can't fix this myself.
7. What peripherals are you are using (gamepad, wheel make & model etc)
8. The cars just drive in a straight line, no weaving. No screenshot needed. In my topic in the Suggestions section i posted a video of the weaving in F12019. (Around 2.36 minutes.)