Depending on the FOSS you use, yes. Eg, https://tidelift.com/ https://tidelift.com/ . Is it more convenient to find commercial/proprietary vendors instead? O

Depending on the FOSS you use, yes. Eg, https://tidelift.com/ https://tidelift.com/ . Is it more convenient to find commercial/proprietary vendors instead? Or to use warranty-less software and pay for your own staff to track changes and be ready to maintain the software yourself?