Uh... You can escape these sequences. But the escape character isn't the backslash for obvious reasons (it's the path separator). It's the backtick.

    > ni '[abc]'

        Directory: C:\Users\<user>

    Mode                 LastWriteTime         Length Name
    ----                 -------------         ------ ----
    -a---          21/04/2023    12:23              0 [abc]

    > gi '[abc]'

    # no output - would have matched files named a, b, or c

    > gi '`[abc`]'

        Directory: C:\Users\<user>

    Mode                 LastWriteTime         Length Name
    ----                 -------------         ------ ----
    -a---          21/04/2023    12:23              0 [abc]

    > gi -LiteralPath '[abc]'

        Directory: C:\Users\<user>

    Mode                 LastWriteTime         Length Name
    ----                 -------------         ------ ----
    -a---          21/04/2023    12:23              0 [abc]

    > gi -lp '[abc]'

        Directory: C:\Users\<user>

    Mode                 LastWriteTime         Length Name
    ----                 -------------         ------ ----
    -a---          21/04/2023    12:23              0 [abc]

As far as I know that's been in powershell forever.