Bambu had its requirement to go through their servers since before the Ukraine war, though it has gotten progressively harder to work around.
the Ukraine war started in 2014 technically. But even if we go to the "current" wave start, that was 24 February 2022[0].
Bambu Labs released their first printer (X1C, on kickstarter) on 31 May 2022, let alone their "must go through cloud service" restriction starting in early 2025[1].
[0]: https://en.wikipedia.org/wiki/Russo-Ukrainian_war
[1]: https://blog.bambulab.com/firmware-update-introducing-new-au...