The key to having fun with the gonarch fight (and other huge chunks of Xen too, like the Gargantua chase and Nihilanth) is to discover that the jump pack is broken and if you hold your crouch key, it tricks the game into thinking you never touched the ground. So you never lose momentum and can infinitely slide around at a thousand miles an hour, boosting your speed every time the jump pack recharges a bar. If you've never learned Source airstafing, the wide open first stage of the gonarch fight is a great place to start.
I do agree the gonarch was changed to be a ridiculous sponge though. Its regular health bar is set a bit too high anyway, but on top of that it's actually invulnerable through the whole sequence between the first and last stages of the fight. Which would be fine, except they didn't do anything to communicate that to the player! It still bleeds, it still makes pain noises, and the only way to figure it out is to waste a bunch of time dumping ammo into it. Very silly oversight.
When you absolutely have to visit Reddit for whatever reason, you should use an alternate frontend. The one I'm familiar with is called libreddit and functions similarly to nitter for twitter. You can do a search to find a large list of instances, but all you do is replace the "http://reddit.com/" part of the URL with the name of the instance. I usually use eddrit.com or safereddit.com