How can I exclude Projecttypes from my portfolio?

I want to exclude Projecttypes from my portfolio page and create a second page with portfolio items from a specific type. How can I exclude types?
https://www.nieuwbakjetroost.nl/deelnemers/

With the shortcode I can show only one specific projecttype. But the style from the theme is missing:
https://www.nieuwbakjetroost.nl/deelnemers-2021/

Website: www.nieuwbakjetroost.nl/deelnemers