not sure whether this has been reported yet, but...
on desktop chrome, in the user control panel (which I use as my FT home page) the width of the "Your control panel" section scales in ways that are awkward to me. In my default browser, that section is way wider than it needs to be. If I make the browser more narrow, it scales down the width of that section until some minimum width. Continued narrowing of the browser makes the control panel section pop up to fill the whole width of the browser.
My primary complaint/request would be to make the control panel frame _not_ expand in width beyond the minimum. It just adds whitespace and no discernable benefit.
Also, the following tampermonkey script sections have made the font sizes relate to each other in ways that are tolerable to me.
Code:
GM_addStyle ("\
.tcell.alt1.text-left {\
font-size: 16px !important; \
} \
");
GM_addStyle ("\
.tcell.text-left {\
font-size: 18px !important; \
} \
");