Both my boys have gaming PC's (Well ones on a gaming laptop) However the Xbox series S is so cheap and great value I picked them both up one each on this forum, £160 each if I recall and with the game pass they are endlessly entertained.
Plants vs Zombies is the flavour of the week. storage is not a issue as they just delete the games they are not playing plus they can play games on the cloud which uses no storage.
My older boy (13) plays more on the PC but the younger (10) loves the xbox
By far the best value console available