A bug with the system after the update

[aliwin12]

I am writing from a translator, so there may be errors in the text.

In general, I installed elementaryOS, updated it, since the Linux system always asks to update and install different drivers after installing the system (usually around 700-800 MB), and since this update included updating the kernel to a newer one, of course the system was updated a little too long.
But in the end, when I got into the system, some programs crashed, I thought it might have something to do with the kernel, and forgot about it.
But in the end, when I decided to reinstall the programs and download the rest of the drivers, the system either did not recognize some commands, although everything was fine before the update, or generally wrote at the end that my version of the distribution might be broken or unstable.

Please help, as this story has been going on for a month now.