Easymotion does not work under Code-Server

I am trying to debug reasons why EasyMotion won't trigger when the extension is used under VSCode-Server (see related issue: https://github.com/cdr/code-server/issues/3196).

To Reproduce
Install VSCodeVim under Code-Server, configure "vim.easymotion": true in the settings, try triggering it by pressing <leader><leader>w. Rather than seeing highlighted words, the cursor simply moves forward (as if simply w was pressed). This does not happen when I use vanilla VSCode.

Although I seem to be able to reproduce this problem consistently in several environments, a fellow code-server developer does not observe it, so for now I am trying to figure out ways of debugging the problem (or finding confirmation from someone else who could reproduce it as well). Interestingly, everything else works fine (all the usual Vim functionality, any kinds of remappings, vim-sneak, etc).

Any hints on how to approach it? Could I set some breakpoints/watch some variables somewhere to understand what is happening?

Start by reproducing the EasyMotion trigger under Code-Server with "vim.easymotion": true, then compare the same w sequence in vanilla VSCode. Trace the EasyMotion key handling and determine why the command behaves like a plain w; done means highlighted words appear reliably in Code-Server without breaking the existing Vim functionality.