Twitter / X has a strong network effect and was tested to be strong enough to still have hundreds of millions of daily users still using it even after the changes 1 year later with nonsensical reports of it being completely shut down or collapsing since the acquisition.

Compared to what? Pebble (T2) [0] that tried (and failed) to challenge this alongside the string of other alternatives that have failed to over take Twitter / X's active user base.

Twitter's network effect is reason why these alternatives have mostly failed at being an alternative even after marketing as such.

Network effects really should not be under estimated.

[0] https://pebble.is