Cogs don't work after discord.py 2.0 update

I’ve been coding with discord.py 1.7 and my bot and cogs worked but after the discord.py 2.0 update my cogs load in (I think) yet when I try to use any they don’t work at all. I have no clue what I’m doing wrong.

This is my Main:

from Utils import *

async def load():
    for cmd in os.listdir("./BotCommands"):
        if cmd.endswith(".py"):
            await client.load_extension(f'BotCommands.{cmd[:-3]}')

#client connect
async def main():
    async with client:
        await load()
        await client.start(config.token)

asyncio.run(main())

and this is one of my cogs:

from Utils import *

class Owner(commands.Cog):
    def __init__(self, client):
        self.client = client

    @commands.command()
    @commands.is_owner()
    async def ping(self, msg):
        await msg.send("Only the owner can use this command!")

    @commands.command()
    @commands.is_owner()
    async def remove(self, msg, userId: int):
        db.find_one_and_delete({"UserID": userId})
        await msg.send(f"Removed <@{userId}> from the database!")

async def setup(client):
    await client.add_cog(Owner(client))

I looked up a tutorial on youtube and from what I saw his code was the same as mine (only difference was what the command did)