If it’s just one large file I just play it on a podcast app (in my case Podcast Addict) and if it’s multiple I stich them together with ffmpeg before sending it to my phone.

Every day, I have an app that connects the audio of my pc to my phone through wifi and using bluetooth would just make the whole setup unusable for calls + wifi has better range and audio quality than bluetooth. The whole setup is PC->Ethernet->Router->wifi->Phone for ~30 ms of latency and the app is soundwire.