PHP Parse error: syntax error, unexpected token "*" in core/modules/menu_ui/src/MenuForm.php on line 235

I have checked with the same version & i am not able to reproduce the issue. can you please provide some more information.

None of those comments in the screenshot are present in the 10.2.0 version of the code: https://git.drupalcode.org/project/drupal/-/blob/10.2.0/core/modules/men...

It looks like you have patched core somehow.

Running some git archeology

file=core/modules/menu_ui/src/MenuForm.php;for commit in $(git log --pretty=format:%h $file) ; do git show "$commit":$file|grep -n '*'|sed "s/^/$commit:/" ;done|grep :235:

reveals the file contained a * on line 235 between commits d0d3e53361 and 44f76c6bcf in 2014. The tagged versions for this period are 8.0-alpha12 and 8.0-alpha13. But, even then it's unlikely this file contained a syntax error: while even I have a hard time remembering when we wrote the menu test it certainly was included in the first test commit in 2008. And indeed manually reviewing the file shows this * was part of the doxygen, back then.

Perhaps try reinstalling Drupal 10.2.0 or tell us how are you installing it.