hmm, I suspect that is what primal's goal is. To take the most marketshare then as nostr keeps getting more and more popular, people won't say, join nostr, they will say join primal. Then primal will continue to get bigger and bigger and they will have more control over nostr bringing the flood of users to use primal and not clients like amethyst.
Then most of the primal users will only see other primal users closing out the other users who are not using primal.
I can't recommend primal because they ask you for your personal information like name address etc. It's just going backwards, like using Facebook. They might gain and overall marketshare but eventually they will wont win. They already have a bad reputation.