Playing and producing work are different
Gaming-related income can involve game testing, educational content, streaming or organized tournaments. Simply spending time in a game does not automatically generate payment. Testing requires bug reports, content requires audience value, and tournaments require success. First decide which role you want; do not treat all of them as one easy income method.
Turn game testing into a concrete deliverable
When you find a bug, record your device, version, steps taken, expected outcome and actual problem. Support it with a brief screenshot when necessary. A good report enables the developer to reproduce the issue. Review tasks, confidentiality and payment conditions in official testing or job announcements. Do not trust claims that buying testing access will necessarily lead to paid work.