Companies in tech should be verified (somehow) before hiring a candidate. The verification process should indicate 1 year of approved budget per candidate. That way, we can secure our jobs for at least one year.
It's perfectly acceptable to ask a company about their funding, runway, burn rate, etc. during the interview. If they only have a few months of runway, that will vastly affect your decision versus a healthy 18+ months of runway.
Usually startup funding amounts are public.