Bitcoin was created by Satoshi Nakamoto, to be a decentralized digital currency in the hands of people, so that they will have total control over the Bitcoin that they hold. Bitcoin gives it's holders freedom and privacy of transactions, so that third parties like Banks and governments cannot interfere. But the decentralization of Bitcoin has been a big concern for many governments around the world.
When Donald Trump, was campaigning for the presidency, he took a friendly stance towards Bitcoin, probably to get votes, now that he has won the election, many people are hoping that the US will have favorable Bitcoin regulations. Today Bitcoin has gone beyond p2p transactions between two parties, people needs to carry out transactions through third parties like centralized exchanges, also facilitate crypto transactions through Banks. This is the major area where government interferences comes in, they want to regulate cryptocurrency transactions by all means.
Although I can't blame governments on their stance to regulate cryptocurrency, mainly because of money laundering. We however can't say that Bitcoin is totally decentralized if governments that are centralized have so much influence in some parts of it's transactions.
It's true that inasmuch as Bitcoin is a decentralized digital currency which is not controlled by third party, let's not forget that those who uses non custodial wallets do have full control over there fund, unlike Bitcoins on Centralized exchanges, which is why it's always advisable people uses crypto wallets where they own the private key. However, over the years, government policies have also been known to have slight influence over the price movement of Bitcoin when an unfavorable policies are made against mining companies and most especially centralized exchanges, which I'm sure must have prompted the crypto community to support Donald Trump when he gave his support to crypto. So in a nutshell, Bitcoin is still decentralized, but it depends on what type of wallet it's been kept.