I use a little `chrome-new` script to develop (and sometimes take video calls or use buggy apps) against a totally clean fresh Chrome profile, then I use Firefox with uBlock Origin and uMatrix for daily driving.
#!/bin/sh
[ -z $CHROME ] && CHROME=chromium
TMPDIR=$(mktemp -d /dev/shm/chrome-XXXXX)
$CHROME --user-data-dir=$TMPDIR --no-first-run --no-default-browser-check "$@"
rm -rf $TMPDIR
The first line lets me override which Chrome version I launch if I want to try instead google-chrome-stable or google-chrome-beta for example. I keep them all installed from the AUR on Arch.
I prefer this way. Much simpler but way more aggressive:
`export HOME=$TMPDIR chrome <args...>`
Will make chrome think that $TMPDIR is $HOME. Keep in mind that means your downloads for example would also be deleted after the rm -rf
This works for most other software too