Hi @belom,
Thank you for posting in our Support Forum!
Please find our dedicated announcement where you can find the link to the latest TeamViewer version compatible with macOS 10.15 (Catalina): End of support for macOS 10.15 (Catalina) — TeamViewer Support
Please note that macOS 10.15 has not received security updates from Apple since July 2022.
For further questions, don't hesitate to come back to us!
Best,
Jen