Why dont you try DIY app player. It not only play m3u it play many other protocol such as p2p mitv rtmp and many other.

You can download the apk from
https://apkadmin.com/j1ab74v3zbng/DIYP%E5%B..._5.2.0.apk.html

Goodluck and enjoy

bros
I have ben playing with iptv extreme, ott nav ott player and many more.
I dont thing the match any of the chinese developer iptv player.

Those chinese app though from unknown source is not recommended for hp but is definitely much superior in tv box and smart google tv
I started with DIYP a do it yourself iptv like those of ott navigator which play m3u and mac id playlist but the chinese player play txt playlist
eg their txt playlist format

Malaysia,#genre# ( this is to set catergory)

My Astro channel, My URL1 playlist string (which could be m3u, macid=xxxx, p2p. mitv, rtmp and many other protocol )
My Astro channel, My URL2 playlist string
My Astro channel, My URL3 playlist string



The above mean if you have two or more url from different source and one source maybe down the other will take over. So if you have a few source that mean your channels will continue to function with a working channel.

Moreover, they have built in have codec format to play in different playlist.

Try it out is worth exploring
https://apkadmin.com/j1ab74v3zbng/DIYP%E5%B..._5.2.0.apk.html

Today, i am playing with an advance player which could take in json playlist with iptv + VOD is call tv box
https://drive.google.com/file/d/1KPCv51nZTJ...ew?usp=drivesdk

how is the DIYP iptv? does it match those that come with tv box.
TBox is mostly in chinese, i will do a video how to setup tbox.
Tbox is vod cum iptv and the speed is comparable and it is pro point is it skip channels that is not streaming
unlike diyp it keep spinning until time out. Another pro is it play txt playlist as well and m3u format playlist
and it can insert multiple playlist and the switch is almost immediate.
I will post the video soon how to setup