Red dot right hand corner

Hello Gettoit, No I don't believe someone is recording your call. This attached discussion link is from an old community discussion from someone with an iPhone 8 with the same question. Maybe it will help.

What is the red dot on iPhone screen? - Apple Community

Open Control Center to learn more about what app is causing the dot.

Access Control Center on your iPhone and iPod touch - Apple Support

Why my iPhone has a red dot on the right top corner ?

Read the previous posts.