Betta Fish: My first betta “aquarium” vs now

I am so glad I listened to the fish police,
I was going through my old photos and found this horrifying atrocity that was one of my first fish “tanks”. I had maybe three over the years (this particular one was from 2020, one of those tiny cup sized ones with a tube that filtered out old dirty water by adding more) I wish more people were willing to listen because this hobby is so incredibly gratifying!
I now have two betta fish and the difference is insane