Recently I've had to investigate the staking architecture of certain altcoins.
It's interesting to compare their architectures and technical decisions with what I know of #Bitcoin.
One thing I can say of the chains I've looked at, is that they're mainly larping as decentralized. Meaning that they're kinda decentralized, but if nation-state level pressure arose, they'd centralize and be compromised very quickly.
One chain, Flow, has functions run by "admin" accounts with a TBD for "decentralization" of those functions.
Another, Kava, has an upper limit of 100 for the number of validators necessary for establishing consensus.
Bitcoin is in a completely different league.