David Baumwald

After WordPress 5.8 is released, infinite scrolling will be removed by default from the Media Library. See Trac ticket <a href="https://core.trac.wordpress.org/ticket/50105" rel="nofollow ugc">50105</a> for the releated changeset and ticket <a href="https://core.trac.wordpress.org/ticket/40330" rel="nofollow ugc">40330</a> for the historical context behind the decision.
This plugin, for the short term, is a global re-enabling of infinite scrolling in the Media Library for all users.
A potential future enhancement is to have a per-user setting, letting individual users decide what’s best for them.

Media Library Enable Infinite Scrolling

Thank you for fixing wordpress feature broken by dumbs

A small plugin to re-enable infinite scrolling in the Media Library after WordPress 5.8 is released.

Kyle Scheuerlein

Add support to the P2 theme for Jetpack Infinite Scroll. This will also automatically hide the default “Older posts” link in place of the infinite scroll button (for visitors that have JavaScript enabled).

Infinite Scroll for P2

Add support to the P2 theme for Jetpack Infinite Scroll.

Media Library Enable Infinite Scrolling vs Infinite Scroll for P2