"Staking" originally meant participating in a proof-of-stake consensus and you get rewarded by the network with the new blocks that are mined.
All the Terra / Luna / NFT / exchange "staking" was people latching onto DPoS to make their schemes sound more technologically sound. Its an overloaded term at this point thats nearing meaningless unless you are clear you mean actual proof-of-stake.
overloading technical jargon for marketing, just on its own, seems like a strong scam signal. or at least a signal to stay away
PoS is like running your own whitelabel SaaS offering.
And yes, I know, it's fighting an uphill battle to discourage the use of "staking" for lending out on a centralized platform. "Words drift in meaning, deal with it". But it's also important for people to be able to know what you mean, and there are pretty substantive differences between that kind of staking and "anything that earns a return on your coin" and it's helpful to have a separate word for it.