Hello,
1) You can choose the single product layout in Theme Options > WooCommerce > Single product page > Single product layout > https://prnt.sc/26c4xw9 if you want to change the layout for some products only, not globally you can use single product settings while editing the product https://prnt.sc/26c4y9j
2) There is no special option for this if you use a built-in layout. It’s possible by additional CSS customization (Theme Options > Custom CSS)
.product_meta {
display: none;
}
3) You can manage the position of the upsell products from Single product settings https://prnt.sc/26c4z7h Also, you can add some content to the sidebar from Appearance > Widgets > Single product sidebar.
Regards