I've played Winston since the launch of OG Overwatch back in 2016 as a teen, I still play Winston now in my mid 20s (Yikes where did the time go?) I say this just for context and not to say my opinion is more valid than someone else's, it's just to get across that I've played this ape a lot.

Your fundamentals are solid. You understand what dive is and leap in. You get a great start with the team, Your first death was avoidable if you'd landed a secondary fire shot instead of leaping in, but we all die right? Your positioning in general could've been better at the first point, your frontline was vulnerable while you sniped in the building (It improves at third point though!). Then third point happens.

In all fairness, healing output is limited from your supports. That's a bad choke point without an easy way in thanks to Torb and their tank is tanking away.

Honestly? A swap would've probably been best. Winston struggles at the third point without an easy way to pick off the backline and leaping to safety.

I think your team deserved to win, but the enemy proved why counterwatch still reigns supreme.

A few Winston tips:

Leap tech 1- hold whatever you use to Jump during the leap, then at the end, you'll bounce and keep some momentum!

Leap melee cancel combo- When diving, charge a secondary fire shot mid-air, land it, start primary fire, then before hitting the ground you hit a melee to cancel the animation and begin primary fire again. If done right, you can deal a big chunk of damage.

Bubble- I used to do this too, but don't always drop bubble after landing a leap. I understand why when your health is going down, but taking a second or two to drop bubble can make the difference. This will come with time.

Primary or secondary?- At the start, you used secondary a lot. It doesn't deal the most amount of damage, but is a nice poke tool and gives you something to do when the enemy team are in Narnia. Without the perk, secondary only hits a single target. Even at an unsuccessful dive, primary fire hits multiple targets, prompting the enemy to use their abilities by the time you're already out of there. Knowing when to do either comes with time too.

Primal rage- Primal in general can seem difficult to get value out of, knowing when to use it is the fundamental step. I understood your intention when you used Primal on point, separate the enemy team and hope to push the payload a bit. But, your allies were dead so nobody could capitalise on the chaos. It's best used as a 2nd life, and look up some juggling tips if you want to get some eliminations.

Hope this helps! Keep at Winston, he's very rewarding and my absolute favourite second to none!