tntteam22
Found an "acceptable" solution
I don't consider it an acceptable solution to install an additional app that requires 3 permissions and currently has 18 stars on GitHub just to save one click (if I understand correctly: press volume button + 2 taps vs. swipe down + tap) apparently still not doing exactly what you want
Downside is "silent" mode triggers DND mode, which is not the same thing but google seems to believe it is as it is an android limitation.
But that's just my personal opinion.
I would be interested to know whether the corresponding Quick Tile used with Sound Toggle App is accessible when the screen is locked—for security reasons, some Quick Settings require the screen to be unlocked. I briefly tested it with “Modes” (obviously not the same thing)—to change these, the screen has to be unlocked first (workaround described above DeletedUser29 works without screen unlocking).