Seeing that this thread started in October 2020, and now it's Febuary 2021, I'm pretty sure that they didn't care at all.
I have been playing this game since the first version on xbox. Back then people would still cheat, but the frequency and degree was nothing like what I'm seeing lately.
Just now I've witnessed someone with unlimited nitro, and invincibility, in that he couldn't crash or be crashed. His health bar would also regenerate.
And he's of course a PC player.
A quick search on youtube would return videos of people showcasing said cheats with download links provided:
1. https://youtu.be/OV8C8cdnMew?t=56
2. https://youtu.be/2uEhQ0MSygg?t=17
What is worse is that if you disabled crossplay, you'd not be able to find ANY lobbies at all. So we're pretty much stuck with cheaters from PC platform.