I use tidal for streaming, so doing normal stuff. Like managing playlists, browsing albums, Artists etc. Doing all that on a matchbox screen is far from ideal because interface is cluttered, text isnt fully displayed, screen/device is not as responsive as a phone would be. Had the fiio M5 long time ago, and was pulling my hair almost instantly :), it got sold pretty quickly.

A reciver like im suggesting is about the size of the Sandisk Clip jam(slimmer in width). So id suggest at least giving it a try before deciding on a tiny DAP. There are pretty cheap receivers with dedicated dac/amps, like the Hiby W3 Saber(AK4377). That one can be had for around $40-45 on aliexpress and its the best bang for the buck. I see the official hiby website also has it on sale right now, and its $39.

Bit more feature rich solution would be Fiio BTR3K(AK4377) usually around $60-70(ive also seen it close to $50).

And last, the ultimate powerhouse, Qudelix 5K(ESS9219) at $110.

I find what i proposed much better solution, and thats the way i consume my music. In the end up to you to decide.