Burnt oil smell 2002 lexus es300 202k

What causes a temporary burnt oil or rubber smell when I brake hard, lasts only about 1-2 minutes

Maybe one caliper is sticking, and braking overheats it. Right after a drive, get out and CAREFULLY touch each wheel hub, if one is hotter than the others then that might be the one with a sticking caliper. It could be VERY hot.

Thank you!