Have you ever cheated?

yes i have i used horion on a small server that died (btw horion is dead and i dont think its being updated)
so i cheated because on that server i already had full everything... fulll netherite gear full netherite tools god armor and such i was bored and then i found out horion was a thing so i downloaded it, went on an alt, joined the server and went to my own base and staarted hacking haacking and hacking until eventually an admin saw which he banned my alt and then i got on on my main and blamed the admin for greifing me... so fun

I once used it when i was waaaay younger (CS 1.6 times) but i got VAC-Banned... nowadays i am "clean", at least in MP-Games. Still use some Cheats/Trainers in SP-Games sometimes

Entity Speed is one of the most favorites features as it makes your horse or pony travel 70blocks per second is insane.

yeah, i was playing survival server back then, i used it to get diamonds fast lol

It's probably a prerequisite if you wanna survive on anarchy servers.

Is it considered cheating to turn on creative mode?

I never cheated. It feels not right, it is not right. Learn to play, you don't need cheats!

Nope, just creative in offline word single player <3