The same examples given every time ollama is posted. Off the top of my head the installer silently adds login items with no way to opt out, spawns persistent processes in the background in addition to the application with unclear purposes, no info on install about the install itself, doesn’t let you back out of the installer when it requests admin access. Basically lots of dark patterns in the non-standard installer.
Reminds me of how Zoom got it start with the “growth hacking” of the installation. Not enough to keep me from using it, but enough for me to keep from using it for anything serious or secure.