The scrollbar is all the way on the end of the page, it really feels like it would be better fixed on the right of the result, even if the query has too many fields in the row.
Thank you for surfacing this feedback @Sam_W! It sounds like you'd prefer that the vertical scrollbar in the query editor panel be always shown and fixed to the right hand side when there are more rows than can be shown at once. Currently, the vertical scrollbar only shows up when the user starts scrolling up or down.
Circling back to mention that this has been surfaced internally to the product team who focuses on this aspect of the Retool UI. We can track other users' feedback and interest here, and we'll keep this topic updated if/when there's movement toward making the vertical scrollbar fixed.