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.
fo shizzle my nizzle
At least it makes me feel good that I only just got a set for the first time last week and figured all those out within 5 min of actually using them.
I have them off, but if something comes in that I should respond to I do send some sort of response back (errands, plans, etc.) I just don't like feeling I get that I should respond now to something just because I saw it and now the person on the other end knows that I saw it, and are now wondering why I haven't sent something back yet.
X2 on kde connect, I regularly use it to control my desktop with my laptop