Consistent 'back' button
The back button doesn't work consistently. It goes back to different locations based on where you are.
For example, if I go into 'Files', enter a folder and then open a file, the back button doesn't take me to the folder I was in but all the way back to the main folder. This gets annoying when your team has become intricate with several layers of folders.
P Leonard commented
Hi - we're the only Microsoft "Showcase College" currently in the UK. Many of us have MCE, MIEE and MIE qualifications - so we genuinely feel we can provide Microsoft with information they need to improve the quality - and therefore popularity of Teams! This shouldn't be a big fix, Microsoft - simply have the back button go back to the previous window you were on before you clicked a link.
mine just goes back to whatever was the last teams link I clicked. It's even worse then you describe.