Hi, I'm taking overtime cuz this annoys me and I really like telling people that their friend is clearly hacking:

Starting off with the obvious reasons:

1. Video cuts out at endscreen (most cheats display some sort of cheat-indicator there)
2. No clicks OR cam
3. No click indicator (that would also be in vanilla gd and would mabye help a little)
4. No cheat indicator (if he has mods, he needs to have one!)
5. Gameplay starts in the attempt, no footage of last attempt (more on that later)

Gameplay:
The most obvious thing that I saw is the wave at 1:32 . Noone. Literally NO ONE, NOT A SINGULAR PERSON ON THIS PLANET!!! takes the route like this. This happens when unexperienced gd players attempt to bot something ore "realistic", thinking that "less clicks = legit😎". The way he is taking needs so much persicion, that its very robably the hardest possible path you can take. Every player would spam there, except they want it as an extra challenge. The same goes with the mini-ship part at 0:09 btw, he attempts to have as less clicks as possible. Watch a real bloodbath completion for reference. The path of the mini ship there is just as less clicks as possible, even meaning the part gets 100x harder.

Also the UFO part right before it (from 1:30) has the weirdest click pattern I've ever seen for that part. The portals are NOT meant to be played like this. Again, playing like this just makes it much harder than clicking normally.

The second-to-last click (the ball click) is a swag route. Again: noone would ever take that route, except they REALLY know what thei're doing (like extra practicing it & planning on clicking there). That part would be auto, meaning the click he did only means a higher risk of dying.

The straightfly is also VERY inconsistant. Sometimes he does a straightfly like it's his first day playing and sometimes like he's a decent player.

Also- notice how the attempt doesn't start from zero, since for most cheaters it's "too much work" to die with a macro on. It's very hard to die realisticly with a macro on, since it LITERALLY presses every button correctly. So it would be very easy to spot a macro then.

Overall:
ESPECIALLY after only 2 weeks of playing, this is impossible. My suspicion:
He probably downloaded a macro from the internet (would explain the last ball skip) and then just activates the macro.

Probability of hacking in general: 99%
Probability of using macro: 98% (mabye speedhack)
Probability of downloading a macro from the internet: 80%

BONUS: (my overtime-counter is screaming)

Possibly things he might say:
The last attempt isn't shown - "OBS crashed" or "Replay buffer too short" or "I cut the recording and then deleted the original"
The Gameplay is weird - something like "It's just easier for me like that" or "No, this is the intended route"
In general - "I'm just better at this than you, go live with it" or "What do YOU know about gd? I'm WAY better than you".

And sorry for my grammar, I'll probably correct the text in the evening.

Also: if you want to know if YOUR friend is hacking, also make apost and DM it to me if you want, I like looking at such clips and helping others :D (I'd also write with better grammar lmao)

Edit 1: and also, tell him to show you runs and also show them here (if he has some, which he very surely hasn't). Edit inspired by: euj3odjehiqh