You can only adjust the haptic intensity there.
No options for any other vibration strength… which is what the OP wanted.
The vibration is the only thing that’s disappointed me so far with the 3a. But it’s quite a big disappointment.
All the glyph ringtones have basically no vibration… so you can’t feel it when people call and its in my pocket, so I’ll be forced to always use an audio ringtone.
Playing with the glyph composer yielded the same results with little to no vibration on anything I tried to create.
I downloaded some vibration apps to see what the phone was capable of…and I was unable to make it do a sustained vibration. The closest I could get was 100ms vibration with a 1ms pause that repeated. Or a 200ms vibrate with a 100ms pause that repeated…to give a decent pulsing vibration. It’s still not an amazingly strong vibration…but its better than every glyph ringtone.
All this is irrelevant to the problem anyway…as there is no way to set these vibration patterns to any kind of ringtone or notification. But it does show what’s potentially possible.
Nothing would need to add this to nothing OS as an option/feature.
I hope they read this and decide they need to.
IMO it’s desperately needed and tbh, if id known about this before I bought the phone… it would probably have been a deal breaker.
On the other side of it, the haptics can be too loud as well and make a popping sound, even when on silent mode. So if you truly want a silent phone you have to turn haptics off manually every time!
(The intensity can be modified for the keyboard haptics in the settings of gboard by changing the vibration intensity setting to 56ms in the gboard preferences, but this only affects the keyboard.)