EDIT: Thank you all for your answers. If you want to help and have an Android TV device, please check your Google's permissions and let me know if it looks like the screenshots above. I just want to know if every manufacturer uses the same shotgun-approach to connecting your Google Account, or if an alternative exists. Thank you.
OP: I understand it needs some level of access to use the Google Play store, but it looks scary on the permissions page since it's the only third-party app that has full access, the rest are OK with "some account access".
Also YouTube seems to need its own access anyway, and it's pretty much the only Google app I use there.
Does every Android TV look like this? Can I get away with allowing it *less* access to my account? Would a dedicated Android TV box also need full access?
EDIT 2: Turns out the device ALSO shows up with a warning in Google's Security Checkup, even though I signed out and removed the third-party app. So, why did a TV need to be both logged in as a device AND have a third-party app with full access, is beyond me.
Any TCL's Android smart TV owners out there? Your account might be compromised too.
Don't worry, your TV is not going to sneak upon your gmail inbox.
For privacy reasons there isn't a Google Chrome, Gmail, Drive and photos apps on Android TV and you can't read your Gmail inbox with the Google assistant either but you can watch your photos with the assistant, though it's easy to turn off using the Google Home app.
Google already has full access to your Google account so...
For any other concerns don't hesitate to ask.