Interesting fact: Having installed, two weeks ago, Linux Mint in dual boot with Windows 7 Pro, SP1 x64 in my 73/4 year-old PC, I just discovered that I can actually access and copy files from my MacBook Pro Retina (ca. late 2015) to my PC and to do the same from the PC Linux side to the Mac, when both are on and connected to the router, in a very simple way.
Not only that, by I can also play music videos kept in the Mac over on the PC, when the PC is connected to the common router over an Ethernet cable or over WiFi. The Mac is permanently connected via WiFi to the router (that could be changed to over Ethernet cable, of course, I just prefer it this way).
(1) Open “Files” (that I have pinned to the Mint taskbar).
(2) Open Users.
(3) Open your User directory file
(4) Select “Network” in the black left-hand bar.
(5) Chose the folder with you Mac name on it.
(6) You’ll be asked to login with your Mac user ID and password.
(6) Open this folder, and you are in.
I was able to copy to the Linux desktop a PPTX presentation created in the Mac with the Office 2016 (for Macs) version of Power Point. When I double-clicked on it it opened flawlessly, same as in the Mac, but this time with LibreOffice (installed when installing Linux). To try this out a bit further, I did a some very slight editing and saved the edited file in the Linux Desktop. It all worked out quite nicely.
As to accessing the files on the Windows side of the same PC from Linux, I use a script (also accessible through “Files” by selecting “File System” in the left-hand black toolbar of “Files”, where it shows up as a link that looks like a folder). There are other ways of accessing the Windows file system from Linux in double boot. They are very well known, so I won’t go into those here. I have not found a way to copy files from the Linux partition when running Windows, but that can wait. On top of all that, I can also access the Windows 7 side of the PC from the Mac using MS Remote Laptop. So adding Linux Mint in double-boot with Windows has made both the PC and the Mac accessible to each other and across three operating systems.
All the peripherals (printer, external hard disks for back ups, optical drive, thumb drive, headphones, etc.) are working as well from the Linux side as from the Windows 7 side.
I am probably as ready now for the EOL of Win 7 next January, as one can reasonably be.
Ex-Windows user (Win. 98, XP, 7); since mid-2017 using also macOS. Presently on Monterey 12.15 & sometimes running also Linux (Mint).
MacBook Pro circa mid-2015, 15" display, with 16GB 1600 GHz DDR3 RAM, 1 TB SSD, a Haswell architecture Intel CPU with 4 Cores and 8 Threads model i7-4870HQ @ 2.50GHz.
Intel Iris Pro GPU with Built-in Bus, VRAM 1.5 GB, Display 2880 x 1800 Retina, 24-Bit color.
macOS Monterey; browsers: Waterfox "Current", Vivaldi and (now and then) Chrome; security apps. Intego AV