Searching the following articles for "NO KYC" will yield additional methods:

*Person-to-Person bitcoin Trading Exchanges*

- [Github](https://cointastical.github.io/P2P-Trading-Exchanges)
- [Article on Medium](https://cointastical.medium.com/p2p-otc-exchanges-e-g-localbitcoins-bisq-hodlhodl-etc-20f293a2c72e)

*Exchanges with support for bitcoin Lightning network payments*

- [Github](https://cointastical.github.io/Exchanges-With-LN)
- [Article on Medium](https://cointastical.medium.com/exchanges-with-support-for-bitcoin-lightning-network-payments-739829bcb7bc)

*Physical Stores where you can Buy or Sell bitcoin*

- [Github](https://cointastical.github.io/Physical-Locations-Bitcoin)
- [Article on Medium](https://cointastical.medium.com/physical-stores-where-you-can-buy-or-sell-bitcoin-9a28686fb625)

*Dollar Cost Averaging - Exchanges*

- [Article on Medium](https://cointastical.medium.com/dollar-cost-averaging-the-answer-to-the-question-is-now-a-good-time-to-buy-bitcoin-a84e518f50f0)

cointastical

Looks like that is a custodial exchange.
How is that considered decentralized?

Unfortunatelly, there are not many places, where you can do that and really remain 100% anonymous. BUT I can offer you to check Crypton exchange from Utopia p2p https://twitter.com/UtopiaP2P/status/1480838807935078402?s=20 It's decentralized and no KYC, so it can be accessed from any part of the world without any restrictions.