I’m assuming you are concerned about UTXOs and how the crypto analytics companies can trace your BTC. I highly recommend looking up on YouTube, check out Matt Crater from Bitcoin University (has a course on that) and Sparrow wallet mixing service.
Essentially, you can purchase everything normally like everyone else does but use a mixer to anonymize your BTC on Blockchain before moving safely into your hardware wallet.
I’m assuming you are concerned about UTXOs and how the crypto analytics companies can trace your BTC. I highly recommend looking up on YouTube, check out Matt Crater from Bitcoin University (has a course on that) and Sparrow wallet mixing service.
Essentially, you can purchase everything normally like everyone else does but use a mixer to anonymize your BTC on Blockchain before moving safely into your hardware wallet.
Definitely get a cold storage wallet.