Trackpad dragging has inconsistent sensitivity, setting a/o function

dragging with trackpad seems to have some troubles and the function has a changing sensitivity.

I use my trackpad with

• tapping instead of clicking
• double-tab and hold with dragging, letting go releases

This seems to not work proper and constant. At the moment of writing I have to 'click-hold-drag' to get a window or anything moving.

Another thing that irritates is the single and double-tab frequency: often single tab ends up to be double- tab. Highly irritating because sometimes it opens a file.

The function(s) seems to be erratic.

Another example is selecting my Bluetooth icon in the menu in the top menubar. Normally I single tap an item, in this case Bluetooth, and drop-down menu opens so I can select for example my earphone. Today it works fine, but yesterday single tapping causes a window with question the question 'do you want to close Bluetooth?"

I tried looking in the settings of the system (see picture) but it doesn't help or change anything - it simply doesn't work well or … at all!

I have no idea why this is happening. I tried restarting the Mac but that doesn't help.

I was looking for the setting of the interval-frequency of tapping and that there is nowhere to be found. I can't remember exactly but I do think in previous versions of macOS, this was an option, and I would suspected to be in accessibility. It is nowhere to be found is this relocated or has it simply being removed?

This erratic behaviour of my trackpad and the way I use it has started since the last update of the macOS

As far as I know my software is up to - 26.2 (25C56), I use a M1 macStudio.

Has anyone encountered these issues?

Does anyone know a solution or a workaround?

Thank you for your help