My 2020 M-1 macbook pro has denied me access to alot of websites but not all

Your VPN provider might be the culprit. I have NordVPN, and as soon as I turn it on, many websites deny me access; many of them give me this message. Especially, if you have "DNS Filtering" on. I use the Microsoft services and websites daily for work, and they do not load or block me if I turn on my VPN. So it could be:

1. 1. Your VPN service.
   2. Your ScreenTime settings.
   3. Global "cookies" settings.
   4. You were passively (no confirmation) logged out because of inactivity, but you had an open page for logged in users, and then tried to interact with content in it or refresh the page.
   5. You are on a country attempting to access a website from a foreign country that does not offer services in your current country (even if you use VPN).

ScreenTime settings are another culprit. You may have shared the ScreenTime settings from your iPhone to all your other devices.

Rejecting certain cookies will disable access to some websites. These all are the most common culprits.

If you could copy and paste the text of that message, instead of a link to it, then the information would be useable by all.

That message suggest the problems are problems of those web sites, not of your Mac.

EDIT: I see the moderators have already removed your link to another site.

VPN:

A virtual private network, or VPN, is a private connection over the Internet from a device to a specific network.  VPN technology is widely used in corporate environments. If you need to be "present" on an institutional network, a VPN is a great tool for accomplishing this. It is generally issued and controlled by the institution.

Almost all other uses are a SCAM. There is generally no need for you to have a private (and almost always MUCH slower) connection to a VPN vendor's Network, except to make it easier for them to harvest your data to sell. If you are behind a Router you control or Trust, there is NO security advantage whatsoever in using a VPN. Your connections are already encrypted in most cases.

If VPN vendors just stopped there, it would be bad. But many of these packages also insist on scanning all your files, non-stop, -- nominally looking for viruses, but who knows for sure what data they are harvesting. Their non-stop file reading punishes your computer's performance in the process.

Some also break into your other secure connections so they can be FIRST to examine your data, often leaving your Mac MORE vulnerable to attack.

What VPN service to use? DON'T use VPN services

https://gist.github.com/joepie91/5a9909939e6ce7d09e29