Does Gatsby v5 support Node.js subpath imports?

[CobyPear]

TLDR: Does Gatsby v5 support Node.js subpath imports in gatsby-*.mjs files?

Hi! I am upgrading a gatsby v4 codebase to gatsby v5 with the intention of utilizing the ESM support introduced in v5.
I have somewhat uncommon setup, and I want to make use of Node.js subpath imports in the project. When I try to use one of these imports in gatsby-node.mjs, I get a vague syntax error:

  SyntaxError: Invalid or unexpected token

  - translators:119 ESMLoader.moduleStrategy
    node:internal/modules/esm/translators:119:18

  - loader:468 ESMLoader.moduleProvider
    node:internal/modules/esm/loader:468:14


not finished load plugins - 0.542s

 ELIFECYCLE  Command failed with exit code 1.

Is this a feature that needs extra support from the Gatsby side, or is there some config I'm missing on the Gatsby side?
Thanks!