Does a Laptop Charger Cause Signal Noise and Transmission Issues?

Hello @here how is our day going? I just observed two things just now while using my Oscilloscope and my USB to TTL converter:
When my laptop charger is connected while using the oscilloscope to measure signals, I often see noise on my readings, when i remove the charger, the noise disappers. Has anyone encountered this, and what could be the cause?

Similarly, when my laptop charger is connected and I’m using a USB-to-TTL converter, I occasionally experience data transmission hangs. Has anyone faced this issue, and what solutions worked for you?

I just started experiencing it this morning?