After switching to neovim 0.7.0 things break down: it is still possible to navigate between two tmux panes, but trying to navigate between window splits inside neovim moves the cursor to the other tmux pane.
Reproduction:
open tmux session
create two two vertical panes: navigation between the two panes works
go to the right pane and open neovim 0.7.0 then open a file, then ctrl-w + v to create a vertical split
now when trying to navigate between the splits, the cursor goes directly to the other tmux pane. Seems not to recognize the neovim panes.
Works perfectly with neovim 0.6.0
After switching to neovim 0.7.0 things break down: it is still possible to navigate between two tmux panes, but trying to navigate between window splits inside neovim moves the cursor to the other tmux pane.
Reproduction:
ctrl-w + v
to create a vertical split