Your phone likely records videos in HEVC format (if purchased in the last few years). If you want to watch your own videos on a PC, you'll have to deal with the codec.
>Your phone likely is recording videos in HEVC format (if purchased in the last few years).
Checked. Seems to be h264+aac.
Arguably not a recent phone (OnePlus 3), although I feel no pressure to upgrade.
The current plan is to wait for first Google Pixel using RISC-V. Next year I would say it's fifty-fifty chance, informed by the switch to PowerVR GPU this year on their SoC, and next years expected general availability of RVA23 cores.
That's something to begin with.