Using unauthorized "activators" or "keygens" often results in more than just free software:

Searching for a or free serial number poses significant security and legal risks. While Bandicam 6.0.5 was a legitimate update released in December 2022, "cracked" versions are almost always modified by third parties to include malicious code. ⚠️ Security Risks of "Cracked" Software

Built into Windows 10 and 11 (Press Win + G ) for quick, free game and screen recording.