It does not matter what one does, the buds pro would not remain in the ears. I have disable the touch function so I can handle them whenever they are about to fall.
I've tried all three plugs' sizes and the only I got one of the plugs stuck in my ear canal. Third parties plugs might help, but I have not tried them. The buds are not worth buying them.
Hi @EuanStruts Sorry to hear of your loss. Not saying you are necessarily inserting the buds incorrectly but best to ensure the instructions are being followed , there should not be a gap or space between the ear and the eartip. See more detail here Galaxy Buds Tips
However perhaps the tips do not work for you, some customers have found that memory foam ones are more comfortable and a better fit. See some examples here https://www.amazon.co.uk/Silicone-Anti-Slip-Replacement-Charging-Reducing-Gray/dp/B091YDNKPK
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .
I've had my galaxy buds pro for so long and they never fit. I put some wingtips on them and it actually stays in my ear!
Ps. It won't charge with them but it's still a win cause they won't fall out now! (: