Whiteboard vs shared doc vs an actual IDE — the format changes how I perform way more than I expected

Same me, same amount of prep, wildly different results depending on what's in front of me. Give me a real IDE with syntax highlighting and I write clean code. Put me in a blank shared doc and suddenly I'm second-guessing bracket placement like it's 2004. Whiteboard is somehow the most honest one — no autocomplete to hide behind, so I actually think before writing. I only found this out because I'd only ever practiced one format going into interviews and got blindsided by a different one. Worth explicitly practicing all three instead of assuming they're interchangeable.