I stopped using programs like etcher for flashing iso's after i found out you can just run
cp /path/to/your/file/example.iso /dev/[insert device here]
For example
sudo cp ./Downloads/archlinux-2023-09-01.iso /dev/sdb
I love it because it just works on any linux machine, always. Of course, this is maybe not fit for your usecase.
You can also use dd, tee or even echo, the archwiki has a good section on flashing iso's.
I recommend Librewolf. It's a privacy focused fork of firefox. They apply their own patches to every new firefox release so you always have the newest features of firefox minus the bloat.
Comes preinstalled with ublock-origin, no Telemetry, no Mozilla VPN, no pocket, no prompts to create a mozilla account, no ads on the start page, default search engine is ddg and deletes all cookies (exept for whitelisted sites) on launch.