It is difficult to know where to start. The website is riddled with misleading nonsense. For example here
https://astroimagery.com/equipment/telescopes/best-telescope-for-astrophotography/#research-what-telescope-would-you-recommend-for-astrophotography
in positions 2 and 7 here you have a Dobsonian mounted scopes which are not suitable for astrophotography and the description does not match the scope.
I apologise if I am wrong but the main purpose of this website appears to make money not to inform.
Robin