Use the following short cuts.
Shotcuts
Ctrl + Shift + PageDown ==> Move to next sheet (Option + Down arrow on a Mac)
Ctrl + Shift + PageUp ==> Move to previous sheet (Option + Up arrow on a Mac)
Screenshot

Reference
Keyboard Accelerators
Answer from Jacob Jan on Stack ExchangeVideos
Use the following short cuts.
Shotcuts
Ctrl + Shift + PageDown ==> Move to next sheet (Option + Down arrow on a Mac)
Ctrl + Shift + PageUp ==> Move to previous sheet (Option + Up arrow on a Mac)
Screenshot

Reference
Keyboard Accelerators
On Firefox used Alt + Up and Alt + Down to move the worksheet and avoid conflicts with moving the browser tab.
When working in google sheets, I realize the help (ctrl+/) gives me all the shortcuts i could possibly want to know. However, when trying to move to the next sheet/tab, the shortcut (alt + down_key or ctrl+shift+down_key) the cursor jumps 20 cells, not to the next sheet. Any ideas?
Working with a pixelbook go, OS ver 119.0.6045.212 , managed by workspace (my own domain, so i am the superadmin)