I've gone through cycles.  I thought the iPad would be a gamechanger when it came out, and in practice, it was frustrating to use for my intended purposes.  I later switched out to a Chromebook & used that extensively.  I'm back to using a desktop for several reasons:
1. I like to loaf, and I can loaf in my chair & chill with a desktop computer
2. I've got carpal & LOVE my MS Ergonomic keyboard.  I type a lot & having a real keyboard instead of a digital one or a small laptop-sized one makes a really big difference for me.
3. I'm a lot faster with a mouse than a touchscreen.
4. I like real multi-tasking, especially with a mouse
I still mostly use my desktop to just surf the web, but I can lounge, type, multi-task, and use a mouse, which is all pretty chill.  Plus I have a nice big 32" 2.5K single screen.  If I were in the same situation I was when the iPad came out (i.e. still taking college classes here & there), I think the Microsoft Surface would be the way to go...touchscreen, compact, portable, dockable, powerful, fast.  My brother has a multi-screen docking station setup using his Surface & it tucks in to go with him anywhere with the keyboard cover.  It's a really fantastic setup!
The majority of people I know these days just use their jumbo phones.  I know very few people who use tablets extensively.  Most people I know who use computers use a laptop these days.  I converted my own family over to Chromebooks a couple years ago, along with 2FA on all of their accounts, Google Drive, Google Docs, and unlimited free Google Photos.  The only thing I really have to do when I visit to help them IT-wise is to tweak their Chrome settings:
1. Switch their homepage back to google
2. Remove anything that took over their default google search engine in the drop-down
3. Remove any crappy extensions (I always use uBlock Origin & Privacy Badger, by default)
4. Remove any allowed popups & redirects in the settings
All of which takes about 60 seconds, which is pretty easy!