pnpm global install directory changed after switch node version by nvm

[xiamu33]

I use nvm and pnpm in my new mbp m1.

I execute command blow to install them:

$ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash
$ nvm install 16

$ curl -fsSL https://get.pnpm.io/install.sh | sh -
$ pnpm install-completion # it report a error. (just ignore it now

then I install nrm use pnpm i -g nrm, and it install at /Users/xiamu/Library/pnpm-global/5/node_moduels. it seems be fine👌

but after that i upgrade pnpm: pnpm add -g pnpm and pnpm i -g typescript, the global install directory changed !!

$ pnpm root -g
/Users/xiamu/.nvm/versions/node/v16.13.2/pnpm-global/5/node_modules
$ pnpm prefix -g
/Users/xiamu/.nvm/versions/node/v16.13.2

if I install node v14, the root/prefix will changed to ~/.nvm/.../v14.18.3.

I think the dir of global pkg real installed should always be the same for unified management. and its easy to find all pkgs when uninstall pnpm.
by the way, I cant uninstall the pkg in node v16 which i installed in node v14.😰

I am not sure whether its a bug, it behaves as expected in windows, wsl2 and macOS with intel (the global install directory always fixed, like /Users/xiamu/Library not in ~/.nvm/...).
or where I got sth wrong?

[xiamu33]

I made a test.

remove nvm and install node from nodejs.org

and

$ pnpm prefix -g
/usr/local
$ pnpm root -g
/Users/xiamu/pnpm-global/5/node_modules

not /Users/xiamu/Library/pnpm-global/5/node_modules (which is my old mbp's global install dir)😵‍💫

[xiamu33]

I remove both nvm and pnpm and reinstall them. now it works as expected.👐