Using draw offers as phycological tricks

It does not seem productive to play an opening with the intent of making a draw unless you are confident that your opponent is the superior player.

I wanna clarify @ 900 rating in 10 minute game I spent 6 minutes giving reasons why suicide is stupid. It's like bro I can't actually help you if my intial response is questioned I'm playing chess for fun.

its a potent psychological weapon. Offering a draw makes people think you are not content with your position or your capacity to hold/try to win the position, which makes it more likely that your opponent will decline and push too hard to win.
but you have to keep a few things in mind
1. your opponent can think for an hour and still accept the draw, you cant rescind a draw offer once offered. You must be ok with that worst case scenario.
2. You must be confident you can hold if your opponent pushes. This requires confidence in your own defensive tecnique.
3. you must deal with the possibility that you may have given your opponent a sense of confidence in his position that you may not have wanted. Usually the opposite happens and they overreach but this is a possibility.

Using draw offers as phycological tricks
Is it allowed to, in an opening like the rubinstein budapest gambit, send a draw offer after capturing the pawn with the knight, hence "blundering" your bishop on b4, in order to goad them into taking it? Wondering because obviously theres no way to enforce this, as intent can't be checked over a computer, but is it ever illegal online or OTB?
I don't think algae is that easily fooled.
https://en.m.wikipedia.org/wiki/Phycology

Using draw offers as phycological tricks
Is it allowed to, in an opening like the rubinstein budapest gambit, send a draw offer after capturing the pawn with the knight, hence "blundering" your bishop on b4, in order to goad them into taking it? Wondering because obviously theres no way to enforce this, as intent can't be checked over a computer, but is it ever illegal online or OTB?
I don't think algae is that easily fooled.
Awesome

I don't know the position you have in mind, but in principle yes it is legal to offer a draw in the hope of enticing an error. You won't make many friends that way, and I doubt you will fool anyone, but go ahead and try it once. And be prepared for the opponent who accepts it because he knows you're playing games and just wants to set you off.
What is not acceptable is to make repeated draw offers to annoy an opponent, but I hope you already know that.
It's a position in the budapest that is slightly better for white with good play, but white plays a3 to kick away a bishop that's pinning a knight on d2, and after you ignore it (this is why the draw offer is potent in this position, makes it seem like you just somehow missed or tilted the fact that your bishop was attacked) and take a pawn with a knight, if they take the bishop, it's M1 by smothered mate.
Is it allowed to, in an opening like the rubinstein budapest gambit, send a draw offer after capturing the pawn with the knight, hence "blundering" your bishop on b4, in order to goad them into taking it? Wondering because obviously theres no way to enforce this, as intent can't be checked over a computer, but is it ever illegal online or OTB?