I-GPU + D-GPU Haswell

Hello everyone,
I'm (still) running my 4690K on Ventura (13.4.1 (c)) working smooth with a 5500 XT. (OC 9.3)
Since I Update to Ventura from BigSur, I don't have HD 4600 (Do I have intel hd working before ?)

My questions are:

- Is it possible to have both i-gpu and d-gpu working ?
- Is it better for the graphics, metal support, any improvement to have both ?
- I installed OCLP to have look on the patch and it seems I can apply patch (after some work), do you recommand to apply ?

Thanks for your help and pardon my french.

https://preview.redd.it/wwx83tw7g9db1.png?width=602&format=png&auto=webp&s=c45112a8df3a6386644e1733e231532a177241d8