Before that, see the video below and know that Redmi Note 8 pro has both touch and heating issues. Check whether your phone also has these.
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The problems on Redmi Note 8 Pro are touch issue and heating issue.
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The first issue is the touch issue on Redmi Note 8 Pro, which I had noticed quite unexpectedly. Redmi Note 8 Pro display is sometimes unresponsive along the edges of the screen. I had thought that this touch problem would be a bug or defect on my device, but came to know that a lot of people have experienced this too. This might be due to the cheap quality touch digitalizer used by Xiaomi on this phone.
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The second issue is the heating issue on Redmi Note 8 Pro. This phone was widely advertised by Xiaomi as a device with liquid cooling to prevent overheating of the phone. However, after playing PUBG mobile for a short while in an air-conditioned room, the phone started heating up. On testing, it showed a temperature up to 46 degree Celsius !
https://m.youtube.com/watch?v=0elP5IqZ-nw