Environment

Windows build number: 10.0.19041.388
Windows Terminal version (if applicable): 1.1.2021

Any other software? WSL

Steps to reproduce

Run the following bash command:

printf '\e_123123\e\\'

printf '\e^123123\e\\'

Expected behavior

Nothing is shown.

Actual behavior

The data string is printed:

>printf '\e_123123\e\\'
123123%

Detail

Coming from #120 and excellent comments of @j4james on #6328 , it occurs to me that we should ignore APC and PM the same way as DCS.

Feel free to assign this issue to me as it's very likely to be the next thing in my plan.