How does profit correlate with the duration of options? To wit, do  you profit more off options, the shorter-term they are like 0 DTEs? I know that  option premium correlates negatively with duration.
Pre-suppose you think some biotech will discover a medical cure and skyrocket, but you don't know when. So on a Thurs, you buy one each of a whole option chain for a company. So you have 1 option each of a 0 DTE, 7 DTE, 21 DTE, ..., 365 DTE, ..., to a 2-year LEAP.
The next day, the cure is discovered and the company's share price rockets! Do the shorter-term options necessarily outperform the longer-term options? Or does this depend on other variables?
I ask because gain-flaired posts appear to feature shorter-term options, like a \$600K+ gain on SLV in 3 days, $69,420 in a month, \$35K to \$1.25M in approx. 4 months, \$800 to \$40K in 2 months. I'm not wealthy enough to, and don't, gamble on options, and I know there are many posts flaired Loss too.
You may profit more off of short-term options in terms of returns. The reason is simple: with less time to expiry, the time value of an out-of-the-money option is near 0. However, this is only true if the options expire in-the-money -- a huge &quot;if.&quot;
There are a few caveats that are crucial:

Options impound the entire future expected distribution of returns, so you are unlikely to make easy money.
Any post on Reddit or other social media on money made trading or trading opportunities is likely to be worthless and could be trying to lure you into a pump-and-dump or other manipulation. I would stop reading such posts on Reddit.
You mention options maturing in 7 and 21 days as well as LEAPS. Weekly expirations tend to be very illiquid as do LEAPs. Quarterlies are your most liquid expiries; I'd stick to those.
The bid-ask spread can be quite wide for weeklies, LEAPS, and out-of-the-money options near expiry. You could easily pay a bid-ask spread that is nearly the quoted price of the option -- so a 100% bid-ask spread.

Glad to hear you aren't planning to trade this on your own. I've traded options for years professionally and even I will not trade options in my personal account.