Like I said, YMMV. Speaking for myself, even a cheap Android tablet has some advantages. For example, I can, if I wish, get out of the cycle of using precisely the browsers that you name and use other more secure and, frankly, better browsers. I could potentially de-google the device and strip it down to its bare minimum. Further, if an unlockable boot locker facility is available, I could flash a stripped down ROM. And, at $100, I could rinse and repeat a few times without breaking the bank.
That said, though I have used Android tablets extensively in the past and have done many of the things I listed, my preferred tablet will always be the iPad - specifically, the IPP - and I have very specific reasons for this. First, aspect ratio. I intensely dislike the aspect ratio of (most) Android tablets. Second, apps...I prefer the slick interface and ease of use of apps that are important to me. This is one specific point that Android tablets are weak on...apps. This is not to say that there aren’t good apps - they are just not as well designed as those available for the iPad (with some exceptions...maybe). Third, the essential restrictiveness of the iPadOS platform prevents me from unnecessarily tinkering around, which saves me a lot of time since I use the iPad for my work as an essential secondary device. Fourth, the iPad, again in the context of my work, is a stable platform, which I appreciate.