Fedora Linux 33 was released last week with some interesting changes like switching the default file system to BtrFS, handing DNS resolution over to systemd-resolved, and enabling ZRAM instead of a swap partition by default. ZRAM is a Linux kernel subsystem for handling compression of volatile memory (RAM). Compression sacrifices some processor time in exchange for more space-efficient utilization of your available RAM. ZRAM acts like a traditional storage drive backed swap partition, except that it lives entirely in your system RAM. The exact compression ratio you can expect depends on what you're keeping in memory.
Fedora Linux 33 was released last week with some interesting changes