Thank you for everyone’s feedback around the use of white space on modern pages. We are continually looking for ways to refine our designs and the use of white space is an important part of this. While the custom control of sections or the custom control of columns is not likely to happen, there could be other optimizations we will be thinking about in the future. Thank you.Anita commented
Quick links is particularly bad for being too spread out and taking up valuable space
We’ll enable adding mailto syntax formatted links (mailto:email@example.com) in the FilePicker via the “From a link” tab. This is already supported in the Page picker (Ctrl+K) in the rich text editor (RTE) on modern pages.