The new Matter connectivity protocol could improve the interconnectivity between smart devices from different manufacturers. One element of this standard relates to TVs and streaming devices, which would mean that you could control your Amazon TV using a Google Nest hub.
https://www.notebookcheck.net/The-Matter-connectivity-standard-for-TVs-could-give-you-more-ways-to-control-your-smart-device.584064.0.html