Should I stake my ETH on coinbase?

I don't fully understand what this all means and I don't see good resources explaining within the app. Can anyone explain how staking ethereum on coinbase would work? I plan on hodling for a longer period of time and dollar costing in consistently. Will I still be able to buy more while staked?

It just seems like I get interest for an inability to sell. Is that about right? If so, how would one go about unstaking and selling (not that I want to but I want to understand the process more). Any help would be appreciated!