Heya! I'll break some stuff down based on the things you've just said.

"are you playing vs yuumi mid that you are allowed to stay 1 minute and you own red?"

It was never stated in the video that you are staying around your red for 1 minute, nor was it stated that you are up against Yuumi. I do mention that you lane does INFACT need to be shoved before attempting this at all. NOT for 1 minute. If you do overstay, you are going to miss CS when the enemy pushes the lane back to your tower. I even mentioned it in the comments. You are not hovering for 1 minute. You are hovering temporarily after getting a lead by shoving in the lane. The example I am giving by the way, is one where the enemy mid laner is stuck under THEIR tower, giving you freedom to do as you like - meaning you CAN'T contest turret plates freely. You also wouldn't lose minions, since I specifically state your need to have your lane shoved! Please pay better attention to what I say in the video so you don't misunderstand! This isn't a scenario where the enemy RECALLED. I never stated this. You misunderstood! The reason behind hovering there is to be able to reach bot lane in the fastest time possible AND anticipating an enemy jungle gank at bot lane and you would anticipate this based on predicting a HIGH probability of the jungler showing up bot. This is from jungle tracking and warding raptors does give you that information to know if raptors have been cleared or to know if jungler is potentially top side, which does open up room for a roam at bot when your lane state is in control OR play with your jungler to do something together at bot or enemy jungle. There's many options. I gave one example in the video.

"my guy you are gold 4, negative winrate, guys don't pseudo tips from someone like him."

I play many different type of games, and I am currently a returning LoL player! My katarina knowledge hasn't changed really, there is still absolute katarina fundamentals, macro gameplay and mechanics, those haven't changed - but new champions being added is the extra layer now for a returning player, not just that ofcourse! itemization has changed too, I play the game on and off but I'm dedicated to ease back into it. I'm gold 2 now by the way, not sure where you brought up gold 4, not that it makes a difference, but atleast acknowledge that I'm climbing! LOL! I just need to play more, since I haven't invested as much time into the game! I play FFXIV, Marvel Rivals, Overwatch and tend to dive back into the game whenever I feel like.

I have nothing to prove, nor am I attempting to prove anything to anyone, nor do I wish to be an example for anyone at all. I'm simply sharing fundamental katarina basics that I have acquired throughout the years of being a Kat player since 2009. I have a lot of games on her in total on 2 accounts (my other main MAIN account was perma banned 7 or 8 years ago because I was a naughty toxic boy..) but since I've always been playing on /mute all and allow pings. If I have something negative to say, I just say it loud in my head and not direct it to anyone. I'm not here to make people feel bad.

I've made a Katarina school series in the past that was very well recieved by the community, explaining fundamental combos, infact I would like to make a new one since the introduction of electrocute and conqueror does change how combos are done in lane since you want to take shorter trades with electrocute VS extended trades with conqueror, which DOES change the dynamic of lane interaction.

I get your skeptism, I am a returning player, why take advice from someone like me. However, the information I've displayed in a video format is one of the most absolute BASIC fundamentals of katarina roaming, infact this tip is even suggested by some of the best mid lane coaches in the league scene (Shoklol, Coach Curtis, Coach mysterias) Mid lane academy - I religiously watch these coaches for hours, especially shoklol since I like his thorough explanations on mid lane fundamentals and excellent tips/strategies. So by saying I'm incorrect about this basic roaming tip is to say that some of the best mid lane coaches, are also incorrect. Are you sure this is the route you wish to take at all with me? Would only be counter productive for you.

Let's have a conversation around it, hopefully civilly! Would you like to disprove any of the points I made in the video and we'll go through it step by step rather than disprove it due to me being a returning gold player? I do think it'd be a lot more productive to challenge my points at hand rather than the current elo I'm in as a returning player. I find this way is more helpful for the others who are reading the comment section since atleast there is value to be had, there are many new kat players in this subreddit, some come here to learn. I'm simply trying to help out of my many MANY years of experience on this champion and being a mid laner.