Oh nice! I’ve tried to play my PS2 slim yesterday, but it would read half of the discs I’ve tried. I think the Laser is on its way out. 🙁

That’s quite bad, on mine the second controller port doesn’t work. Fortunately the drive works fine.

Maybe you could try FreeMcBoot

GitHub - israpps/FreeMcBoot-Installer: Custom installers for Several versions of FreeMcBoot. A homebrew bootloader and launcher for PS2

Custom installers for Several versions of FreeMcBoot. A homebrew bootloader and launcher for PS2 - israpps/FreeMcBoot-Installer

GitHub
Now that you said it I think I got a FreeMcBoot memory card somewhere. Hmm, now I need to set up a smb1 server again.
I just run most of the games from a USB stick. I would go with an HDD, I have dozens of ~250 GB laying around, but I don’t have the network/HDD expansion, YET
I have a PS2 slim without the HDD bay and I’ve read that the USB 1.1 is slower than the 10 Mbit/s network connection. A PS2 fat with HDD bay would really be the best option.
I also heard that USB 1.1 is slow, but it seems faster than the DVD drive, and that’s my only comparison point. I was going to get the memory card to SD card adapter since I’ve read is faster, but I don’t care honestly.