I have not used VMM personally, but considering how new RHEL9 is I would recommend waiting for the developers to add support and revert back to v9 for the time being. I honestly have not used RHEL9 as of yet, I mainly use Ubuntu and Debian for day to day operations.
Reseller hosting is very popular because it is a cost effective way for an entry level person to enter the hosting market and the profit margins that can be reaped from such a venture are sky high.
I have used Hypotenuse to write some content and it works extremely well. It is honestly very difficult for me to differentiate it from human written content. While not perfect, it does have some flaws, I think for what it is, it can be a very useful tool to speed up the writing process and lift...
Google Search Console is my go to, but I have never used anything else. This is the first time I have heard of GTmetrix and I will be giving it a try right now. Thank you!
PayPal and Stripe are top tier. If you run a large scale business, an actual Authorize.net merchant account is the way to go. As far as Bitcoin, I have heard Bitpay work well.
I am registering new domain names on a monthly basis, trying to come up with new business ventures. The shorter the better, I also prefer top level domains such as .com or .net since they have been around the longest. Interestingly you may come across a very high value .com domain worth...
If you don't know what you're doing or simply do not have the time to manage a server, then paying the premium for a managed provider is well worth the investment in my opinion.