What do you mean Bitcoin is increasingly being viewed as digital gold? Bitcoin is Bitcoin, there is no need to equate it to gold or anything else, it is a digital asset used for transactions - even though many people use it as their investment, it does not change Bitcoin's function as a means of transaction.
What challenges could Bitcoin face in becoming a universally accepted store of value? Any thoughts?
Government regulations may be a challenge for Bitcoin in the future, because increasingly strict government regulations on the use of Bitcoin will have a direct impact on Bitcoin. Especially when the government is aggressively promoting their CBDC, it might be the reason they restrict the use of Bitcoin.