Basically anywhere you'd previously need to write a kernel module but now can have user space run arbitrary kernel code that's secure and won't crash the kernel.
You can also now write custom schedulers in eBPF with sched_ext.
Can you provide data on motorcycle engines? I do believe this to be true for 2-strokes and older motorcycles, but for modern Euro-4/5 regulated street motorcycles I very much doubt it.
Basically anywhere you'd previously need to write a kernel module but now can have user space run arbitrary kernel code that's secure and won't crash the kernel.
You can also now write custom schedulers in eBPF with sched_ext.