Code editor

CoPilot accept suggested text

ALT + A  (TAB is default, but I change to ALT+A to avoid conflict with normal TAB use. Enter would be nice, but then you get into conflict with Enter being used for accept intelisense suggestion. ALT+TAB is used to app switch by Widnows to that’s also out).

Make text uppercase

Highlight the text you want to uppercase.
CTRL + SHIFT + P
Then start typing the word “uppercase”.