Advice on my equipment and the equipment I should get.

Hello! I wanted to start a podcast that would be filmed outside in public. I wanted to ask for some advice. I have a rather large canon EOS 760D camera, is this okay for podcasts? I have encountered a few problems I haven't been able to fix- this camera only records 20 minutes of footage max. After 20 minutes the thing just stops recording, and I have to click record again. Is there a way to fix this? That would be my first question.

Also, I plan on buying a tripod for this camera and two bluetooth collar microphones, one for me and one for my co-host, maybe three mics in case we have a guest. I have just started dabbling into this idea of podcasting so excuse my ignorance but- how do these microphones work? Where can I access the audio files of us talking into the mics once the episode is over? Where is it stored, is it stored anywhere? Sorry I've NEVER ventured into this and want to learn everything.