Is it okay to manage neck wrinkles with face cream?

It's not a photo of my neck wrinkles, but...

Lately, every time I look in the mirror, it bothers me because my neck wrinkles seem to be more visible than before.

I tend to take good care of my facial skin, applying basic skincare products and making sure to use sunscreen.
Come to think of it, there were many days when I just roughly applied leftover cream to my neck or skipped it altogether.

Do I need to use a separate cream specifically for the neck?

Or I'm wondering if it would be better to apply the moisturizing or firming cream I use on my face to my neck as well!

Especially since I often look down at my phone, I also feel like the horizontal wrinkles are getting deeper...

Those who manage neck wrinkles
What products or routines do you use to manage this?
Also, I apply a small amount of sunscreen to my neck, but should I apply a generous amount?

I'm hesitant because it's sticky and I don't want it to get on my clothes.