Is there any way to somehow record the last 30 seconds?

So: I have a pretty bad PC. Neither the Windows XBox Game Bar (what do I know what it is called) nor this GeForce Experience work because the PC is too bad. Heard that OBS can do that. Does anyone know how?

OBS is actually pretty bad, the quality is mostly dirt.

True, but something better works for me 1. Not and 2. Sufficient for me OBS

Not really. If the quality is dirt, you have not set it to suit your PC

You won't be able to see much then, but okay. I don't think OBS really can.

I was told that once. Do you have an alternative to OBS that also runs on my junk PC? At least I don't know any

That's not true, if you set it correctly, OBS has full quality. Only draws accordingly performance and above all storage space.

Your comment is actually pretty bad because the quality is very good, only the user behind it is usually worse because he has no idea what you are setting.

Youtube can quickly answer how OBS works. However, if you already say that even GeForce Experience doesn't work with you, then I dare to doubt that you can really get your recordings with OBS.

So you have little choice but to get a better PC or, depending on how bad your PC is, better spare parts such as a better GPU.

Got no money, and replacement parts would cost about the same as a new PC. Stupid as a student = /

That is probably correct, but you have no other option.
Maybe you should name your system in more detail what you have installed.

A lot of people almost fall off my feet on my PC, as bad as xD is

For my next questions I'll list stuff.

I'm curious.