I used to use a gaming laptop for poker until I raged in this game called counter strike and ended up smashing the screen. Now I use a shitty HP generic laptop that cost me about 200$ or so.
I wish I invested in this HP laptop sooner so I could've smashed this instead of my beautiful gaming laptop.
I don't think a pricey laptop is critical for online poker. I'm able to run BOL and ACR on a $250 laptop without issue. Somewhat small screen, but you can easily shrink window sizes. I'll also add I play microstakes and somewhat casually, so I imagine the answer is a lot different for more serious players.
Don't think you need high resources to play poker, event if you play on 3-4 sites and open them in same time. I play from an I7 but in past years i've played with dual core or so and i had no problems or lag or so..