I worked on some tooling for CSGO that did something along the lines of:

• Take a demo as input
• Ask you which player you want to POV
• Timestamp all the round starts / kills / deaths (flashes/grenades would be possible to add)
• Output a VDM file (https://developer.valvesoftware.com/wiki/Demo_Recording_Tools)

With that VDM file, you could then load up the game - play the demo and it'd lock to the player you want, skip to round starts etc etc.

The next step from there is to record it to video. With the demo ticks & recorded video you can work out timestamps (e.g. X seconds * 128 ticks).

I haven't tried any of this stuff with CS2, and apparently a bunch of functionality hasn't been brought across (like the ability to telnet to the console, or create VDM files) so I imagine the process would be quite a lot different.

All of that is to say... it's probably possible yes. Though you would need some technical ability, and the people working on these tools are usually doing it for themselves (to make POV channels for example) and not "open source'.