[zokier]

X hasn't been well-behaved as long as Nitter has existed, it's crappiness is arguably the raison d'etre for Nitter.

[rvz]

Unofficial third-party apps, sites, etc will always be playing the cat-and-mouse game and will always be behind whatever change the first party service makes.

By default, Nitter has always been in a losing position in both maintenance and catching up in implementing the missing new features years before the Twitter acquisition.

This also isn't unique to X / Twitter.