You downloaded the wrong version. Uninstall immediately. The verified free version never mentions "Pro" or "Trial" on the splash screen. Look for the green house icon (Make) not the red icon (Pro).
To keep your version , you must respect the EULA (End User License Agreement). sketchup 2017 free version verified
Yes, but with caveats. Because SketchUp 2017 is no longer updated, it does not receive security patches. Furthermore, internal features like "Add Location" (which uses Google Maps/Digital Globe) no longer work because the API connections have been severed on the server side. SketchUp 2017 "Free" Version – What Actually Exists
It runs fine on Windows 10/11, but newer macOS versions (Catalina and later) may experience crashes or graphical glitches. The verified free version never mentions "Pro" or
Long-time users often share archived links to the original Trimble download servers that are still active but hidden from the main site.
If you want, I can: