If you want to fly without a script, the game provides intended mechanics: How adopt me made pets? - Scripting Support
Adopt Me developers actively monitor for irregular save data. Using scripts to manipulate pet properties can result in a permanent trade ban or account deletion. Roblox Script - Adopt Me [Make ALL Pets Flyable...
Using third-party scripts or "executors" like Delta Executor carries significant risks: If you want to fly without a script,
Downloadable executors often contain viruses or keyloggers that can compromise your entire computer or mobile device. Legitimate Ways to Fly Roblox Script - Adopt Me [Make ALL Pets Flyable...