toggle for sharp and tie seems to be the same

Which version? Mine shows (T) for tie.

Mu4 has T for tie, + for sharp.
Mu3 had + for tie

Jojo wrote >: Mu4 has T for tie

I think it's more accurate to state that: Mu4.0 has t for tie.

For the record, shortcuts are always listed with capital letters in documentation - not just in MuseScore but in many other programs as well. In part because most keyboards actually label keys with capital letters. To indicate a capital letter explicitly when documenting a shortcut, write Shift+T.

as a workaround you could delete the "+" shortcut under Preferences - Shortcuts.
Nevertheless it would be nice if MS4 could correctly differentiate between "+" for sharps and "Num++" for ties

Sounds slightly related to https://github.com/musescore/MuseScore/issues/12791

In case this isn't clear, "+" is not meant to be the tie shortcut anymore. If that's still showing on your system, it's the result of still having shortcuts leftover from an experimental prerelease build. Reset your shortcuts to the defaults to restore the property shortcut for tie: "T".

But still it was very comfortable having the note duration and tie all on the NumPad: select the duration, hit + and you have a tied note.... Using t now involves the other hand and requires to change habits ;)

Changing habits is hard indeed, but FWIW, really the tie command is not like duration commands - it's more like pitch commands. After all, first you select the duration, then you select either a pitch or a tie. So having tie close to the letters that you use for pitch actually makes more intuitive sense, if you didn't have old habits to break.

Normally I'm not sure people want numpad keys to work differently from the standard equivalent. So if you want "+" (numpad or otherwise) to to be tie, probably better to simply change sharp to something else entirely.

+ on numpad tor tie and T on keyboard mit be a good compromise

I think I will take advantage of my German keyboard and simply assign # as shortcut for sharps :-)

Sensible choice. No such good match though for flat

Which is exactly how the accidentals never got shortcuts for the first dozen+ years of MuseScore's existence - there is no good combination that makes sense without compromising something else. That's why it took until now for someone to say enough is enough and people could adjust to "T" for tie. I personally am about 80% of the way there :-)

T for Tie works in English, and there only :-(
Then again that is true for S and Slur too

True. But hey, at least you have Ctrl+K for (I guess) "Akkord" :-) Which is ironic because I've heard Werner pronounce that "chord" with a regular English "ch" as in "church"...

On a side note: I usually write the natural note (keyboard a-g) and add the flat/sharp with arrow keys

Anyway, BTT: am I the only one starting to believe that this "issue" here is not an issue but rather a matter of habits (resp change of habits)?
For the Windows version of MS4 I can confirm that by default t is the only shortcut for tied notes, the + is assigned to toggle sharp

Well, the original issue report seems to suggest that on some systems at least, the tooltip for the tie button has the wrong shortcut. but this is what I believe is just due to someone having old settings leftover from an experiment pre-release build.

Adding accidentals by arrow key is what I normally do also - but I suspect that is as much habit because there were never shortcuts in the past as anything else. And of course, it's of little use when entering things like Cb in the key of C, also no use for courtesy accidentals. So I'm very glad to have the accidental shortcuts, and am trying to training myself to use them. I give myself an 80% on ties, but I'm no better than 50% on accidentals.

@Jojo-Schmitz:
beiTreten
¯_(ツ)_/¯

Outch 😜