You can use Browserflow (Chrome extension for browser automation) to extract saved lists from Google Maps: https://browserflow.app/shared/MWz0bTt7zBkyRMTs
Screen recording: https://www.loom.com/share/5ad91e0347294c7a9b4f0e0b3b2b8544?...
I made Browserflow so feel free to ask any questions / let me know if you run into any issues.