show brief list of changed files

I would like to be able to see the list of files that changed between tags or branches: the equivalent of

diff --brief --recursive tag1 tag2

And then be able to drill down into the actual changes.

I could not figure out how to do it in the UI, it always goes deep and shows me the actual changes, which may be overwelming.

Apologies if I missed something, but I looked hard.