How to inspect the global node_modules?

[WarningImHack3r]

I want to inspect my global node_modules, used by the npm i -g command.
It doesn't work currently because the command can't detect a package manager:

pnpx node-modules-inspector $(npm root -g)

⬢ Starting Node Modules Inspector at http://localhost:9999

⬢ Reading node_modules...
file:///.../.pnpm/node-modules-tools@0.6.8/node_modules/node-modules-tools/dist/index.mjs:17
    throw new Error("Cannot detect package manager in the current path");
          ^

Error: Cannot detect package manager in the current path
...

Searching through the options with the -h flag doesn't help either; it doesn't seem like what I'm trying to do is even supported. Can anyone point me to a way of doing this, if possible?