I have the same problem with rpi4 1gb.
By the way I have 2gb model too and It's working without freeze or random reboots with the same (just replace from 1gb) sd card as 1gb.
I have the same problem with rpi4 1gb.
By the way I have 2gb model too and It's working without freeze or random reboots with the same (just replace from 1gb) sd card as 1gb.