Sitemap Question for thousands of pages

Ragchowdary441 said:

There is no problem with sitemap with many pages, there are so many like that...use image alt tags for every image.

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DevLife said:

So i have a site that is quickly growing with thousands of pages.

My site structure:
Home page with an infinite scroll of thousands of images
image display page with title, description and comments.

Would it be beneficial to site map every single image display page for SEO?

i'm constantly adding more images which means there are more pages. Will this help me with Seo or hurt me because my sitemap is growing so large?

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