How to run a function is indirect buffers with the same major mode only?

[daanturo]

Currently I am using elisp-tree-sitter for fontifications.

But applying tree-sitter-mode and tree-sitter-hl-mode in a code chunk also affects other chunks, which leads to incorrect syntax highlighting.

How to restrict something to an inner mode so that it's won't touch other inner modes? Docs at https://polymode.github.io/synchronization)'s suggestions (polymode-with-current-base-buffer, polymode-inhibit-in-indirect-buffers) aren't capable to do the job.