Can I access iCloud on Samsung phone?

NO, it can't. What is it you are trying to do? The moderators retitled your question. I believe when you titled it yourself, you want to know if you can have iCloud or Mac (not sure what you mean by Mac?) on your Samsung. On a Samsung, you could open a web browser and go to www.icloud.com and sign in with the Apple Account and Password. But that does not mean you have iCloud on a Samsung.

That’s an Apple phenomena that’s only available on an iPhone.

You are invited to visit an Apple retail store to discuss your iPhone purchase.

Good luck! 👋🏼😉