Include a "Show All" link in the paginated comments

Hi,

I would like to offer my readers the option of displaying all the comments of a post instead of just the pages.

Most posts have less then 50 comments, and that’s fine but I have some other posts with a lot more.

Is there a way to add a “Show all” link next to the comment pagination?

Here is a good example of a page with lots of comments:
https://www.planetphillip.com/posts/leons-coastline-to-atmosphere-single-player-half-life-2-mod/
TIA