vscode you should know

search files
ctrl+p
type ? into search bar for help for other types of search

search editor commands
ctrl+shift+p or f1 or ctrl+p >

move line or selection up/down
alt+up/down

duplicate line or selection above/below
alt+shift+up/down

peek definition
alt+f12
you can scroll and edit in the pop-up overlay

goto definition
f12

add cursor at end of line or lines of selection
ctrl+shift+i

add cursor above below
ctrl+alt+shift+up/down

ctrl+`
open and toggle terminal window

ctrl+shit+`
open a new terminal

more here