I don't expect anyone to rehash the usual debates over this, but I have a question I've never found answered convincingly...
How the heck do vegans eat high-protein diets? I don't mean "get enough protein to avoid deficiency", there are lots of recipes for that. But practically every vegan food I see described as "high protein" is well under 1/3 protein, which is a pretty unremarkable target if you want to build muscle.
Eggs are a really easy way to fix that: you can eat a lot of them, you get a pretty good range of micronutrients, and their macros are majority-protein so you have "budget" for other foods. Is the vegan fix just getting really good at cooking seitan with green vegetables? That's (with tempeh and tofu) the only option I've found that's even in the right ballpark.
I think the keys are 1) don't be soy-phobic (eat tofu/tempeh, yes, but also soy milk -- esp. the fortified, unsweetened kinds, they demolish most other vegan milks nutritionally), 2) eat lots of pulses (so peanuts, lentils, beans, peas, chickpeas, and the like), 3) eat nuts and nut butters, and 4) choose high protein grains (e.g. oatmeal, whole wheat breads with seeds, whole grain pastas, etc). It all adds up -- I actually found I was getting something like 50% over my recommended protein intake without thinking about it.
I eat mostly vegetarian (I'm not a principled vegetarian so I'll eat meat in some circumstances, just way less than most people) and that's pretty easy, but milk is really cheap & convenient (chemically) for so much cooking, eggs are like a nutrition-on-a-budget cheat code and also chemically useful in lots of cooking, and I love cheese. Going vegan would hurt.
[EDIT] if there's one modification I'd really like to make to my diet, it'd be to add fish once or so per week, ideally the fatty, oily, low-on-the-food-chain sort that're supposed to be so heatlhy. I need some kind of guide for how to work up to enjoying fish when you didn't grow up eating it. I can tolerate larger fish when cooked & seasoned very well, but don't really enjoy it at all, and have no understanding of what even to do with the smaller, healthier sorts that isn't stomach-turning (to me) to even consider. Though for some reason I love sushi and calamari, so, go figure.