Not allowed in Norway yet. Hopefully soon though...
Nice shot OP, but I must unfortunately agree with the rest here: Not a hole in one. I've had a couple of "foam/filler"-outs from some way out myself and, as annoying and unfair it is, I can't count them as in dispite it being impossible to slamdunk a golfball in the cup with fillers/foam in the hole.
As @iacas says, current science says that its safe to remove the flagsticks. However, the USGA provided this guidance from the early days of the pandemic, when a wide variety of measures were put in place to limit the possibility of passing the disease to others:
No, not that. Sets a very low ceiling. Yes, you’ll get better as you get your timing down and ingrain your swing but you’re also further ingraining bad habits and when your game does go off the rails a bit you’ll have no touchstones for reference.
Find a qualified instructor. It can be inexpensive because you don’t have to see them all that often. Learn your bugaboos. Learn your frequent issues and learn how to practice.
If you do sign up for Evolvr it’s inexpensive but it does depend on you to practice well. The students who do well dedicate some time to practice. It doesn’t have to be even thirty minutes a day, but it has to be dedicated and done properly.