Minecraft Optifine Zoom Bug?

Whenever I press zoom my entire Minecraft flickers. What can I do?

I had the same problem you have to re-download it

Why do you even open zoom?

When it comes to talking to others: I would recommend Skype. Worked great for me in the past

Or Discord. Discord is made especially for gaming

Boy I'm not talking about Zoom like Skype but of Optifine as it is in the title

I removed it in windows. And downloaded again but everything was still there.
All my versions and settings. How can I remove all of this?
Do you have discord?

Oh, sry that I wanted to help helfen