I bought my first all in one machine, an Epson Workforce 600 on sale at Sam's Club for what at the time seemed like an outrageously inexpensive price. I didn't really feel that I needed one. I already had scanners, printers, and even an old FAX machine, but in my little office area I quickly realized that it was very convenient to have just have one machine set up to keep my desk and counter space as clear as possible. It was also the first printer that I had that worked wirelessly which is also very convenient and cuts down on clutter.
Most of the major printer manufacturers support Linux, but I am sure that there are major differences in the quality and completeness of the drivers. It is one of those issues that you almost have to fiddle with for a while to find out how good that they are.
The issue with drivers goes back to the MSDOS and home computer days. In the pre-Windows days programs that you were using like Lotus 123 and Word Perfect actually had their own printer drivers. I still have an old daisy wheel printer and a Star Micronics dot matrix that have drivers for MSDOS based programs and will even work with programs on Atari, Commodore MSX and other “home computers” from the era if you have a parallel port adapter. There were even some non-Apple printers that were able to work with an Apple computer if you had the correct adapters, but Apple had a proprietary scheme at that time that was intended to force users to purchase Apple's over priced printers.