Which app is best to invest in digital gold?

[TradeXMaster]

Zerodha and US stocks

And also the circular talks about digital gold and unregulated assets that includes crypto. US stock investments are legal and SEBI order does not include that. And, my main question is - there are brokers who provide digital gold, does it mean that they are doing illegal things/breaking regulations ? I’m confused as there is no mention of US stocks anywhere. Need more clarification. What’s others opinion on this ?

You can read this post (there is a mention about digital gold at the end of the thread)