Summary
This disk seems fast, energy efficient and price is not bad.
ZFS
Use ashift=12, not higher
Source: https://kmwoley.com/blog/zfs-ashift-values-for-samsung-990-pro-nvme-ssds/
ashift=9 probably is the best performance
Source: https://feldspaten.org/2024/05/05/Performance-impact-of-different-blocksizes-on-a-Samsung-Pro-SSD-while-using-zfs/#simulation-stats
Firmware upgrade
No OS
Firmware update .iso without Windows and Samsung Magician
https://semiconductor.samsung.com/consumer-storage/support/tools/
https://download.semiconductor.samsung.com/resources/user-manual/Firmware_Update_Utility_UserManual.pdf
On Linux
You can also use .iso, extract it and run underLinux
https://old.reddit.com/r/linuxhardware/comments/nsq9el/did_anyone_manage_to_update_the_samsung_980_pro/
https://blog.quindorian.org/2021/05/firmware-update-samsung-ssd-in-linux.html/
apt-get -y install gzip unzip wget cpio
mkdir /mnt/iso
wget https://download.semiconductor.samsung.com/resources/software-resources/Samsung_SSD_990_PRO_4B2QJXD7.iso
sudo mount -o loop ./Samsung_SSD_990_PRO_4B2QJXD7.iso /mnt/iso/
mkdir /tmp/fwupdate
cd /tmp/fwupdate
gzip -dc /mnt/iso/initrd | cpio -idv --no-absolute-filenames
cd root/fumagician/
sudo ./fumagician