There are bike lanes. Not as many protected lanes as DC, but we’re getting there. I’ll post a link to our bike network and the big greenway trail project that is coming (and will be transformative.) I bike everywhere I need to go inside city limits. I have a small CUV for work only purposes (I work in construction so it’s unfortunately pretty necessary until our bike network is completely built out at which point I may swap to an e-cargo bike.) The trains to DC allow you to take a bike on them, so your partner could do that if the distance on either end is more than a few blocks. The waterfront promenade is part of the city cycle network which is nice and probably rhe 2 best bike lanes in the city are right by Penn Station with the 3rd best being nearby.

1. Fallsway curb separated bike lane
2. Maryland Ave cycle track (protected)
3. Jones Falls Trail