How do I remove zoom from web view?

[TIMAI2]

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Remove zoom buttons from web viewer, use device back button

Right now I just have a web viewer component on Screen1. I'm noticing that zoom buttons pop up. Is there any way to disable them? [Screenshot_20201001-211648] Lastly, is there a way that I can use my device's built-in back button to go back one webpage. I have a Google Pixel 3a and there is an on-screen back button. However, when I press it, it just closes out of the app.