Thanks Joe, you agree this is odd? How could the app go decades without this glitch being fixed? Amazing how many times I've told people wrong dates, as brain is seeing the wrong month with new day. How hard is it to put correct month over the first day?
How many times have you submitted Feeedback
What does "real language", mean? Was that main motivator?
Click on the plus sign (+) in Fantastical and type or dictate "Appointment massage every second Thursday at two PM" or similar. This is very useful but the main feature is an improved look and feel
For Fantastical, you'd have to put install it on all devices, but Apples Calendar runs in background?
Fantastical will run on all devices, but because it is simply an alternate user Interface you could be running Calendar on one device and Fantastical on another
. It also offers 18 or so "WIdgets" for macOS and a like number for iOS plus even more for iPadOS.