Hi,

Odoo 17 has it by default.
Odoo 16 and below versions, please use this

 https://apps.odoo.com/apps/modules/16.0/list_view_sticky_header/

Hope it helps

Hello

You can use this Odoo app for sticky header in List view.
App : https://apps.odoo.com/apps/modules/16.0/list_view_sticky_header/

Thanks