It depends on what company you're going for. If you are looking for a role in cutting-edge ML (FAANG/OpenAI/Deepmind/etc), the stuff you learn from these online courses does not provide the theoretical rigor required.
If you want a role in a small company building best-effort, out-of-the-box models, then the courses are plenty fine.
If you want a role in a small company building best-effort, out-of-the-box models, then the courses are plenty fine.