As in the Real Time marketing the landing pages and subscription pages are already deprecated so we need to have a seamless integration between customer insights journeys and power pages to be able to embed the marketing form into a power page site without using VS Code. We want to use these forms along with a vanity URL (Custom address to identify the page) and this is only possible if we Publish our form using power pages.

iFrame is the current suggested option in power apps but that is of no use because of limited functionalities and visual UI challenges.