[ShinyLeftPad]

Most people (even pros) even with expensive cameras and great viewfinders still take mostly garbage shots and only some are good by luck. Same will be true here

Often switching from using your eye to looking through the viewfinder and fiddle with composition is how you ruin a genuine shot and miss the moment.

Also I used a camera without a viewfinder for some years, I guarantee if it's a fixed lens you learn what you get quickly.