Programmatic Method to Retrieve the Directories that WSL (2) Appends to Your 'PATH?'

[RandomDSdevel]

     I run a Gentoo Linux instance that I originally set up as a WSL 2 distribution instance manually following this guide. My 'PATH ' in shell sessions in this instance doesn't include the directories appended to it because the Gentoo Portage and Gentoo base system package 'sys-apps/baselayout' overrides '$PATH' in the default system-wide '/etc/profile' it provides. This effectively makes sessions behave as if the 'interop.appendWindowsPath' setting is set to 'false' in '.wslconfig' on the host Windows side even though it isn't. The guide listed above that I initially used to set my WSL 2 instance up provided the source for a Portage user-side package patch, but applying it results in '$PATH' containing duplicate entries.
     As mentioned in the GitHub Discussion I just linked to, I tried adapting the user patch in question by adding a use of an in-lined copy of the 'pathmunge' shell function commonly found in Red Hat Enterprise Linux, CentOS, and Fedora Linux and feeding my 'PATH' through that, but I couldn't get that to work properly. Is there any programmatic command-line (shell) query that I could use to retrieve the directory elements that WSL 2 appends to distribution instances' 'PATH's at startup after my Gentoo instance is already running? That would make it either:

1. a lot easier to produce a patch for 'sys-apps/baselayout' that would work, or
2. so that I might not even have to patch '/etc/profile directly, as I could potentially add an appropriate entry as a new short script file in '/etc/env.d,' whether:
   1. that's still as a Portage user patch or
   2. Portage won't wipe the file when re-'emerge'ing (upgrading) 'sys-apps/baselayout' even if I don't add it in as a user patc, I can avoid having to make one, and I can just leave this new short script file hanging loose in '/etc/env.d'.

I'd like to apply these changes instance-wide so they're the default for all user accounts inside the virtualized system.

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     (I need/want this so I can proceed with resolving this thread I posted asking for help on the Gentoo Forums.)