If my bulbous tip really bothers me could it become better after LF1 if its lifted?
i am not seeing a particularly 'bulbous' nasal tip in your pics. Then again i only have 1 angle of reference and the arrows are obsuring the tip in your 'before' photo.
LF1 advancement can make a downward-pointing tip more in line with the nasal bridge. Although this is pretty unpredictable IMO.
Here is my before and after from a 10mm linear bimax advancement. My case is different than yours because my nasolabial angle was already obtuse whereas yours may be acute. Consequently, you may see some aesthetic benefit. You'll notice my tip raised, but not by a substantial amount. The main side effect was increased nostril flare. It's hard to say what the impact of a 4mm advancement on your nose would be:
https://imgur.com/a/vEWPY9bMy main point is you should manage your expectations, and that soft tissue response cannot be predicted with a high degree of accuracy.