works
Installed at CentOS 8 Stream system by: $ sudo dnf install zram-generator-1.1.2-2.el8.x86_64.rpm zram-generator-defaults-1.1.2-2.el8.noarch.rpm and it properly setup the zram as swap device: $ zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lzo-rle 8G 4K 74B 12K 6 [SWAP]