Landing page: one focused action
A landing page is strongest when there is one offer, campaign or service and one main action such as an inquiry or WhatsApp conversation.
Business website: a broader picture
A website makes sense when visitors need to explore the company, services, differentiators and multiple information paths.
You can use both
Many businesses use a website as the core brand presence and separate landing pages for campaigns.
Clarity matters more than format
Choose the structure that removes confusion for the visitor rather than the one that simply sounds more sophisticated.