Notion keyboard reference:

Esc
→scr
←scr
F1
scr 0
F2
scr 1
F3
scr 2
F4
ssh
F5
edit
F6
view
F7
qkb
F8
F9
+ws
F10
F11
F12
`
→ws
←ws
1
ws 0
scr 0
2
ws 1
scr 1
3
ws 2
scr 2
4
ws 3
scr 3
5
ws 4
6
ws 5
7
ws 6
8
ws 7
9
ws 8
0
ws 9
-
=
Backspace
Tab
→frame
←frame
Q
fullscr
quote
W
↓frame
↑frame
E
R
resize
raise
T
tag
-tags
Y
U
I
↔split
↕split
O
P
[
]
\
caps lock
→tab
←tab
A
tab 0
S
tab 1
D
tab 2
detach
F
tab 3
G
go
H
↔max
J
run
lua
K
L
lock
nudge
;
'
return
xterm
shift
Z
X
unsplit
C
close
kill
V
↕max
B
N
M
ctx
qctx
,
tab->
.
tab<-
/
help
man
shift

META key

All keybindings are activated by pressing the META key, which by default is the 'windows' key.
The 'grey' bindings are activated by pressing ALTMETA (by default pressing Shift while holding META).

Screen
Mod4+Escape	Go to next screen on multihead setup.
Shift+Mod4+Escape	Go to previous screen on multihead setup.
Mod4+1	Switch to object 0 (workspace, full screen client window) within current screen.
Shift+Mod4+1	Go to screen 0 on multihead setup.
Mod4+2	Switch to object 1 (workspace, full screen client window) within current screen.
Shift+Mod4+2	Go to screen 1 on multihead setup.
Mod4+3	Switch to object 2 (workspace, full screen client window) within current screen.
Shift+Mod4+3	Go to screen 2 on multihead setup.
Mod4+4	Switch to object 3 (workspace, full screen client window) within current screen.
Shift+Mod4+4	Go to screen 3 on multihead setup.
Mod4+5	Switch to object 4 (workspace, full screen client window) within current screen.
Mod4+6	Switch to object 5 (workspace, full screen client window) within current screen.
Mod4+7	Switch to object 6 (workspace, full screen client window) within current screen.
Mod4+8	Switch to object 7 (workspace, full screen client window) within current screen.
Mod4+9	Switch to object 8 (workspace, full screen client window) within current screen.
Mod4+0	Switch to object 9 (workspace, full screen client window) within current screen.
Mod4+Tab	Forward-circulate focus.
Shift+Mod4+Tab	Backward-circulate focus.
Shift+Mod4+R	Raise focused object, if possible.
Mod4+D	Toggle floating dock.
Mod4+grave	Switch to next object (workspace, full screen client window) within current screen.
Shift+Mod4+asciitilde	Switch to previous object (workspace, full screen client window) within current screen.
Mod4+space	Toggle scratchpad.
Mod4+F1	Go to screen 0 on multihead setup.
Mod4+F2	Go to screen 1 on multihead setup.
Mod4+F3	Go to screen 2 on multihead setup.
Mod4+F9	Create a new workspace of chosen default type.
F12	Display the main menu.
Mod4+F12	Display the main menu.
Client windows
Shift+Mod4+Q	Send next key press to the client window. Some programs may not allow this by default.
Shift+Mod4+L	Nudge the client window. This might help with some programs' resizing problems.
Shift+Mod4+C	Kill client owning the client window.
Mod4+Q	Toggle client window group full-screen mode

Frames
Mod4+R	Begin move/resize mode.
Mod4+H	Maximize the frame horizontally.
Mod4+V	Maximize the frame vertically.
Mod4+Caps_Lock	Switch to next object within the frame.
Shift+Mod4+Caps_Lock	Switch to previous object within the frame.
Mod4+A	Switch to tab 0 in this frame.
Mod4+S	Switch to tab 1 in this frame.
Mod4+D	Switch to tab 2 in this frame.
Mod4+F	Switch to tab 3 in this frame.
Mod4+H	Maximize the frame horizontally/vertically.
Mod4+V	Maximize the frame horizontally/vertically.
Mod4+N	Attach tagged objects to this frame.
Mod4+comma	Move current tab to the right within the frame.
Mod4+period	Move current tab to the left within the frame.
Tilings
Mod4+W	Go to frame below current frame.
Shift+Mod4+W	Go to frame above current frame.
Mod4+I	Split current frame horizontally.
Shift+Mod4+I	Split current frame vertically.
Mod4+X	Destroy current frame.
Tabs
Mod4+T	Toggle tag of current object.
Shift+Mod4+T	Clear all tags.
Mod4+Return	Run a terminal emulator.
Mod4+G	Query for a client window to go to.
Mod4+J	Query for command line to execute.
Shift+Mod4+J	Query for Lua code to execute.
Mod4+L	Lock screen
Mod4+M	Display context menu.
Shift+Mod4+M	Query for context menu.
Mod4+slash	Show Notion 'live docs'.
Shift+Mod4+slash	Query for manual page to be displayed.
F2	Run a terminal emulator.
Mod4+F4	Query for host to connect to with SSH.
Mod4+F5	Query for file to edit.
Mod4+F6	Query for file to view.
Mod4+F7	Query for keybinding.
Mod4+F9	Query for workspace to go to or create a new one.
Shift+Mod4+D	Detach (float) or reattach an object to its previous location.
Mod4+C	Close current object.