Very sensible comments! Much appreciated
I had a Surface Pro 3 many years ago. Gave it a solid try as a one-stop-shop device. While Windows has gotten a bit better since then, it was not a great experience. Browsing the web on the sofa still felt like I was trying to operate a desktop OS with my finger when it was clearly expecting a mouse. Whole thing felt clunky and slow. And the battery was pretty terrible. Even basic web browsing would heat up the machine.
I also used a Surface Book 2 for a good 18 months, and while it definitely felt like an Apple product in hardware fit & finish, ultimately the battery life left we wanting, especially with the display detached and in tablet mode (I knew going in that the display only had a small battery). The SB2 did ok in terms of battery when it was in Intel's battery-saver mode, but it was horribly slow. In 'normal' mode, battery life really suffered. And in 'performance' mode, which was required to meet the browser performance of my then-owned 11" iPad Pro, it became a furnace with a barely 3 hr battery.
I suspect the newer Surface devices are better given recent improvements in the Intel mobile processors, but I wouldn't expect Apple M1 performance or battery life.
I think (my own personal opinion) in both the Windows world and in the Apple world (macOS/iPadOS), there's still no one single device that's going to give you the best of both worlds. For me at this stage, however, I'm able to get 90+% of my needs met with an iPad Pro, a keyboard folio and an Apple Pencil...
My word processing needs are mostly basic -- anything requiring significantly advanced formatting (tables with borders, shading, landscape pages, multicolumns, etc.) which is difficult to create on the iPad is usually created for me by others on a Windows machine, so their files will load just fine on my iPad with Word for iPadOS and I can fill in what I need or make edits as required.
When I create a PowerPoint presentation, I almost always start it on my desktop machine with its 32" 4K main display and secondary monitor for open folders and other utilities. Even using a single laptop display is claustrophobic for content creation like this. Once the basics are completed, then I have no issues editing/tweaking on my iPad.
My spreadsheet needs are also relatively basic, so Excel for iPad works fine for work stuff and Numbers does fine for personal stuff or things I'm going to send out as PDFs or images (since Numbers can export really nice looking stuff).
The Apple Pencil is great for taking notes and marking up PDFs in GoodNotes (and similar apps) and Word files with Word's Pencil support. And signing documents is easy since I can drop my saved signature right on to PDFs or use the Pencil with DocuSign.
Otherwise, Mail and Safari are more than sufficient for my needs on iPadOS. Mail filters and automations would be nice, but not required for me as I can leave my desktop running to process inbox filters and such anyway.
If the iPad were my
ONLY device, then I'd likely feel differently and probably stick with a MacBook Pro. But I think of the iPad Pro as my daily driver car and my desktop(s) as the truck I only need occasionally to handle something really big.