This is the 374th most frequent Latvian word.
dažādi
Various.
The word "dažādi" is used here as an adjective describing the variety and diversity of 'interesanti produkti' (interesting products). It emphasizes that the products are not all the same but come in different kinds.
Šajā veikalā ir dažādi interesanti produkti.
This store has various interesting products.
Here, "dažādi" is used adverbially to modify how the words are 'rakstītus' (written), indicating variety or diversity in the ways the words are styled.
Mēs apskatījām dažādi rakstītus vārdus uz sienām.
We observed words written in different styles on the walls.
In this sentence, "dažādi" is again an adjective highlighting the diversity and range of 'hobiji' (hobbies), implying that his interests are spread across multiple types of activities.