Regarding font changes in the editor

When changing fonts in the editor, it is inconvenient that I have to click into the uploaded fonts section every single time.

It would be much better if uploaded fonts were displayed at the top of the font list like before, or if the selected font could remain active once it has been chosen and set.

The current process is very inconvenient and makes font changes unnecessarily cumbersome.

Until the picker itself changes, the workaround that saves the most clicks is to stop picking the font per element. Open Site Styles, edit the Typography (theme text styles), and assign your uploaded font to the headings and paragraph styles you actually use. After that you only choose a style like Heading 2 or Paragraph 1 from the text settings, and the custom font comes along with it. It also means a later font swap is a single edit in Site Styles instead of reselecting it on every text box.