Learning doesn't really require $10K of cloud credit.
However, maybe you can combine your intention to learn and help out someone with a need for cloud computing by volunteering for their project. Many good projects, some open source, need this kind of computing access.
Your time is the most important investment. If you want to learn, decide what you want to learn. If the cloud credits can help with that (e.g. if you want to learn about large scale deployment, or practice tuning ML models), then great. If not, just ignore the credits and spend time as you would have without them.
However, maybe you can combine your intention to learn and help out someone with a need for cloud computing by volunteering for their project. Many good projects, some open source, need this kind of computing access.