Ok but you did ask if you should pursue her, which means try to date her.
So, a couple things… 1) Do you ask people questions about themselves? Meaning are you making that effort to get to know people and it’s not reciprocated? If not, I would try that first, like hop on the zoom on time and make a little small talk, even better if you do this in in person meetings. Try to find a commonality with someone. It can start with just asking about their weekend and trying to get to some rapport from there.
2) You said the apps don’t work, what do you mean by that? I know apps aren’t easy but are you chatting with anyone or getting any dates? There could be something off about how you are interacting with people. And I know you said you’re not looking to date your crush, but then when you say the apps don’t work and you get lonely… it sounds like maybe you ARE looking to make a romantic connection at work and that might be a vibe that people pick up on.