Can you please provide more information about the plugin not compatible with WooCommerce?
We tested the latest version of the Product Add-ons plugin 2.0.6, with the latest version of WooCommerce 4.3.0, as you can see from this video here:
https://www.loom.com/share/6e2bd1bfca844e269d6838f4d3469266
The plugin functionality is working and compatible with WooCommerce.
Please let us know specific details about the problem and any compatibility issues you are experiencing with WooCommerce. We’d be happy to review the issues.