I purchased this Anteel Dash Mount Car Phone Holder on Amazon (see below link) and found it to be one of the most stable I have had over the years except for one minor niggle. It was too low behind the steering wheel. So I designed and printed this extension arm which uses an M3 nut & bolt to fix it to the rest of the device. There are two versions as I made the 61mm version first and found it too big, would be wouldn't it Now it is happy days Printed in PLA with infill at 50% for strength and with 20% tree supports.

https://www.amazon.co.uk/gp/product/B098XN6ZVT/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1