Most likely there’ll be lots more hunting for physmem read/write vulnerabilities as well as bugs in userspace stuff like GUI whatsits that’d give code execution/memory readwrite.
Userspace bugs is where I’d look first.
I for one have no problem with cheat/anticheat developers discovering/patching Linux vulnerabilities that could otherwise be exploited in far more dangerous capacities.
Good LPEs escalate you to kernel (which is true for most exploitable kernel bugs).
LPEs are usually used to escalate to root, but in many of them, the kernel itself is compromised. There's just little reason to do stuff in kernel space when you can get root and load kernel modules anyway.