Most "patched" installers are bundled with malware, miners, or ransomware that can compromise your personal data.

Trimble offers a full-featured 30-day trial of the latest SketchUp Pro version, which allows you to complete short-term projects without a permanent license. Conclusion

When you see websites offering lists of serial numbers and authorization codes for SketchUp Pro 2021, these are almost never functional on their own. Modern Trimble software requires an online "handshake" with their servers to validate a license.

Students and educators can often get SketchUp Pro at a massive discount (often around $55/year) through authorized resellers.