Vispero interview questions

Very strange process. First call with hiring manager was him basically telling me that the team and company is in disarray. Next step was with C suite who asked maybe 2 questions and didn't bring much value at all to the conversation and let me speak for 30 minutes. Thought it was a huge red flag that neither of them have the company listed on their LinkedIn. Emailed both of them after interviews and none of them got back to me in any capacity with feedback or anything.