[lm28469]

Don't you lose your job sponsored health care after being laid off ? Or is it expected that companies keeps you employed when you get a cancer / other high impact health issues ?

[s_y_n_t_a_x]

You'll most likely fall under COBRA protection (https://www.healthcare.gov/unemployed/cobra-coverage/)

where you can keep your employer coverage for 18 months while you find a new job.