bet365 Graduate Software Developer interview questions

A meeting over teams speaking to the tech recruiter after an initial meeting with a different recruiter. The interviewer was friendly and the questions were straightforward. The next step was possibly an interview at their HQ

Had a phone interview with a "Software Development Team Leader". Felt more like an informal conversation. Discussed the role and what I'd be doing and who I'd be working with. He asked about a few points on my CV, what my strongest programming language was, what I'd do if I can't solve a problem via Stackoverflow. Had a follow up call from the recruiter/HR person 72 hours later in anticipation of being invited to the next stage in person but was rejected because I was "lacking technically". Very anticlimactic, vague feedback. Better than the usual ghosting I suppose. The extremely long term unemployed painful grad search continues.