Seriously, Alchemy has ruined Historic Brawl. There should be its own Alchemy format for brawl. It ruins the game with things like conjure out of commander color, drafting from spellbooks, seeking, and so much other non-magic mechanics that should be left to its own terrible format. Please listen to the players on this one. WE USE BRAWL to test cards for commander, and alchemy makes that ridiculous. This is what should happen IMHO:
1. Alchemy Brawl (so no key to the archive, no mythweaver poq and other ridiculously overpowered cards in regular brawl
2. Historic Brawl - ban all the worst contenders in each color, ragavan, mana drain, dark ritual, the one ring, teferis protection, primeval titan, paradox engine, wash away, sundering titan, griselbrand, maybe even a couple others (basically things that are banned in commander shouldnt be allowed in brawl, because its tougher against just one person.
3. Have a Hardcore Timeless Brawl format where literally ever card is allowed, alchemy, everything, Oko, etc. And then don't allow concedes either.

Having Historic Brawl separated into three formats would make a lot of players happy. You can play the lighter janky normal format if you're looking for some casual fun, if you like alchemy you can play that or the hardcore version going into it knowing you can't concede and anything goes.

I feel like this one change to brawl would make the most impact on the player base's happiness.

I agree wholeheartedly. I cannot stand alchemy and I've hated it since its very beginning. I simply can't believe that there isn't a single format on Arena that excludes alchemy cards. I hate what it has done to the game.

i fully agree

I completely agree with this opinion. Brawl is the closest thing we have to Duel Commander on Arena. And not only does the format not follow the Ban List of Duel Commander (i.e. Mana Drain, The One Ring are legal for some inexplicable reason), but Alchemy cards completely ruin the experience for me. They are completely unbalanced, f.i. Cabaretti Rebels, Oracle of the Alpha, Buxton, and put the player that wants to build a paper-like deck in a complete disadvantage. It's not fun, it's not fair, and overall, I hate playing Brawl because of this. So please, separate Alchemy from Brawl, and let people who want to play Alchemy cards to face other people who want to play Alchemy cards, like you already do in formats like Standard and Explorer.

alchemy is not fun to play against, it's a set that is designed to break core rules harder than paper could feasibly allow. often un-interactably undercosted, it's a clear cash grab that weakens the brand.

Please let alchemy exist in their own format, the cards are clearly pushed and that is ok, but they should exist separated from the normal pool of cards, playing with and against them is annoying for a lot of the player base, this could be solved by making historic brawl and alchemy historic brawl 2 different formats

I hate this alchemy trash mechanics that cant EVER EXIST. Black red card where we discard hands and seek 7 cards from each others decks is complete fkn ****.

I agree, I play Historic Brawl on MTGA for the same reason I play face to face commander, so if it can't be done in commander, historic brawl should also not be allowed. Maybe give the Alchemy their own brawl format separate from Historic Brawl

Congratulations. 14% of games are Alchemy. You haven't broken down just how much of brawl play is Historic Brawl, but with overall Brawl play superseding Alchemy and Historic eclipsing Alchemy by over 10% of total play numbers, I wish you would stop making digital-only designs. It's all that keeps me from resuming Historic play, and I am still absolutely livid you believe it's okay to call Spreading Seas too powerful, and print the digital-only, pub-stomping nonsense you do. I'm still conceding against literally any Alchemy Commander. If I see two Alchemy-only cards played in a row, I'm out. Acknowledge that people hate Alchemy. Stop making excuses.

I personally hate alchemy. Is totally useless and that broken cards have to disappear from format like brawl and historic

Alchemy is a failure of a format, but WOTC will never admit to it, so they'll feel forced to keep it around in historic and hbrawl because those are the only played formats where the cards are legal. Wotc additionally hate Brawl players anyway, so they want you to suffer for their incompetence.