What else is there? A simple search with DDG on “write iso linux” turns up the other than Etcher the following and I’m sure there are more:
- DD
- UNetbootin
- Rufus
- Balena
- Ventoy
(linux added to the search string to weed out windoze results.)
My guess is the minimum data they collect is the number of installs. Like the Counting Count.
1 install, ha, ha, ha …
2 installs, ha, ha, ha …
3 installs, ha, ha, ha …