Hello,
1) We used Post grid element to display https://prnt.sc/112emwb
2) We used Product categories element https://prnt.sc/112emh2
3) Are you talking about this https://prnt.sc/112ente
We used Recent posts widget https://prnt.sc/112eoki
If you provide us with WP Dashboard access to your site we’ll be able to help you and create mentioned sections as an example.
Regards