I've found iPads to be fantastic presentation tools.
Having an ipad on a conference/convention booth is amazing - airplay my rotating content to a big screen, and when someone walks up I can grab the ipad to delve into details based on the conversation.
Early on (first gen ipad) I had a whole client team nickname me "the ipad guy" because I showed up and presented across a few ipad apps where I could pinch, zoom, and annotate live instead of showing a vanilla PPT file.
After months of suffering through that, he switched back to a Macbook Air and carries the iPad for watching Plex now. I am still baffled as to which "pros" the iPad Pro is targeting.
It's nice to have for movies on flights.
A few times a year I use it as a portable second monitor.
I use the stylus for sketching sometimes.
Being self-critical, I overpaid for something I thought I would use more.
I'm not a fan of and don't use the ipad OS features that basically make it more like a mac desktop.
Those who I have observed who have done so basically use the ipad for email and writing.
I was responding to "why would anyone use an ipad ever for anything?"
iPadOS 27 broke many keyboard use cases for me, including very simple things like using tab to move to the next field on a form in Safari. It worked in iPadOS 26, but doesn’t now.
This adds to the bug where switching between apps with modifier keys tends to cause those modifiers to “stick”. That bug has been there for years, and prevents me from using my iPad as a programming environment even though the software support is there.
Windows has the benefit that it's still an open-ish OS. If something doesn't work as expected, it can be somehow hacked into the way you need it to be. I think Linux doesn't work well with touch devices and pen input, also the choice of presentation software is much more limited.
I've used and like https://github.com/nyblnet/bento, but more and more I'm just going to self-contained html because the effort in to get what I want is just so low.