Hey there and welcome to the Samsung UK and EU Community Customer to Customer Forum
This depends. Your question refers to giving "Android a suggestion" in which case you'll need to reach out to Google.
If your suggestion is about One UI (Samsung's skin that sits on top of Android, then you can do so through Samsung Members App, Support, Feedback.
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.
My device is an S25 Ultra.