Left side of page cut off (on mobile)

Sometimes when I click on feedback posts, there's an approximately 1 cm-wide strip running down the entire left side that is cut off from the page. I can't zoom out, and reloading the page doesn't fix it. Only by going into desktop mode does the page let me zoom out to see the entire post.

Would love to add a screenshot, but oh well. I'm on a Samsung Galaxy Z Flip 7.