Brave shows different shortcuts for creating session tabs. The shortcut previously added in #10363. See screenshot :)
+ button on tabs bar > New Session TabCtrl+1 etc. for session tab. This shortcuts used for navigating between tabs.File menu (press alt if menu hidden) > New Session TabCtrl+Alt+1 etc. This one is the expected shortcuts.Actual result:

Expected result:
Should show the right shortcuts

Reproduces how often:
100%
about:brave info:
Brave | 0.20.30
-- | --
V8 | 6.4.388.40
rev | 8b78402
Muon | 4.7.9
OS Release | 6.3.9600
Update Channel | Release
OS Architecture | x64
OS Platform | Microsoft Windows
Node.js | 7.9.0
Brave Sync | v1.4.2
libchromiumcontent | 64.0.3282.119
Reproducible on current live release:
Yes
cc @aekeus @bsclifton
Looks fine on macOS. May be Windows-only.

I think that shortcut should be Ctrl+Shift+Number.
Also Ctrl+Number just switches the tab 1-9 and not create a session tab.
Notice that if #13015 passes, we'll need to change these again.
Edit: This would be fixed by #13015. The shortcut would be changed to Ctrl + Shift + 1 on Windows and Cmd + Shift + 1 on MacOS.
Seeing this on latest build (0.20.41)

Verified keyboard shortcuts removed on MacOS:

Verified
Brave: 0.20.42
V8: 6.4.388.41
rev: 096c7cb3c75ebb518f72fc7d24bc2bbaedd50aed
Muon: 4.8.2
OS Release: 4.13.0-21-generic
Update Channel: Release
OS Architecture: x64
OS Platform: Linux
Most helpful comment
I think that shortcut should be Ctrl+Shift+Number.
Also Ctrl+Number just switches the tab 1-9 and not create a session tab.