It is not that simple. The exchange may treat the trade as removing liquidity and no rebate. At least that was the answer I received from Lightspeed when I questioned about fluctuations of option commissions.
This is what I did: bought 500 shares yesterday at $196.65. Sold 195, 197.5 calls this morning a little after opening. Now my risk is the naked 200 call.
It is all relative. I have $3000 at Robinhood and $50K at Webull. I use these two accounts for price discovery and try out new strategies. One for option, and the other for stocks. Both are commission free.