If it is only donation, nothing to worry about, but if they demand anything for their own agendas in return, I'd say it's concerning indeed.
When there was news about BlackRock’s or which other stock investment companies' bitcoin ETF was recently approved, I can't recall which of them made that statement where it was stated that either 5% or 10% of their profit will be donated to bitcoin core developers. Out of curiosity, I asked a question about what they would want to benefit from such a statement.
But I was made to understand that there is little to nothing that they can influence on bitcoin, as the majority of any change on the network is being done by voting, and if the majority doesn't support any decision, then it's going nowhere. So if there is anyone who wants to make a generous donation to the network, let them do it, as the funds will go a long way towards the development team.