The developer can put an option for hide : "more tweets"
I made a ublock origin filter for this. :
! More Tweets
twitter.com##[aria-label="Timeline: Conversation"] h2>div>span:has-text(/^More Tweets$/):upward([style^="transform"])
twitter.com##[aria-label="Timeline: Conversation"] h2>div>span:has-text(/^More Tweets$/):upward([style^="transform"])~div.
The developer can also put an option to disable “Show more replies,” button Thank you.

This really cleans things up! The only feature I hope gets added is the ability to block retweets in Lists.

What a great addon. Removes all the clutter and cruft that Twitter has built up over the years, gives you back a nice clean simple experience without metrics and all that wasted space. I also like it will stop you seeing people quote-tweeting those you've blocked, stopped the "This tweet is unavailable" message. A great simple addon, thanks very much! Highly recommended if you're a Twitter Web user.

it's the best. You can customize your favorite places that were inconvenient. The only inconvenient point is that the direction of the timeline should be set so that the latest tweets are at the bottom.

【Added to 2025.02.20】
The timeline may loop when opening Twitter using a container tab in Firefox Nightly. Another problem is that the chronology may become erroneous.

pls update

It's perfect ! Thank you !