The right way to honour OSS (open source software) builders

All startups today have their foundations based on OSS (open source software) . This is what really accelerates new product development and can go unappreciated sometimes.

My question is for very permissive OSS licenses (MIT / Apache etc ..), how do you give the authors due credit. What are some interesting ways you've seen companies, who keep their modification closed source, celebrate and honor the OSS efforts used to bring their products to life.

One way I've seen this is just by having a separate section and list out names / links to the project. In some cases these are hidden behind a lot of clicks to make it hard to find. Also, this might be the bare minimum as it is required.

What I'm trying to know is for the companies whose products you love, how do they honor their OSS builders? Do their users ever get to know what OSS projects are powering the products? Is it important to promote this more?