I have been using tablets since the first generation iPad came out, and have used practically every flagship tablet, and quite a few non flagship ones, and in my experience, if you even want to be slightly productive, iPad goes out the window.
1. You can't install WhatsApp, forget installing two copies.
2. Meta apps and most apps designed for the iPhone do not make full use of the large screen. You get a stunted phone interface in a tiny window, and even the keyboard isn't full screen in most cases.
3. Multi-window is utter garbage.
4. There are absolutely no good open-source apps (barring the rare exception like local send). PDF convertor, Bluefin Console, image toolbox quickly come to mind.
5. You cannot mirror your notifications on windows devices. Android let's you do it with even FOSS apps like Scrcpy and Sefirah
6. You cannot use external devices like Microphones and Webcams.
7. You cannot use system level adblockers and script handlers like adguard etc to the full extent.
And these are just a few I could think before hitting the bed.
That said, I currently have the M2 iPad Pro, Tab S9, Tab S10 Ultra, and the Huawei Matepad 13 pro. For using as recommend by Apple, and doing the basic stuff, and playing games nothing beats the iPad.
If you want the fun to begin, go Android and the ADB way, and you will see the fetters breaking away.