Buying Crypto Through 3rd Party

After solely using coinbase I’ve finally started looking into wallets as I want to store my crypto off exchanges. I have the coinbase wallet and just linked it to a new Trust wallet and also got Meta Mask as well. Figured I would play around with all 3

But for example, when buying crypto through meta mask, there are those 3rd party options to buy through such as moon pay. I was just wondering if it’s safe to enter my KYC info into it and if there are any I should watch out for? Been trying to look up stuff but haven’t came across much.

(All help is appreciated and I already know to not to respond to any DMs asking for info about my wallet and etc. I’ve seen plenty of people comment stuff like that on posts and is amazing how helpful and watchful this community is)