My phone does not just give access automatically to any device plugged into it. You are REQUIRED to give permission from the phone. Which cant be done because the screen is fucked.
The first ever Android I had (Galaxy S4) was sadly dropped by a friend, and the oled screen was toast within a few days... thankfully I had previously authorized ADB on my main computer, had it paired to a Sony Ericsson LiveView (with OpenLiveView), and my bluetooth headset was set up to automatically launch the music player when connected. Could also make calls using the voice assistant (forgot what it was called back then, S-Voice or something?) needless to say a screen replacement wasn't urgent at all.
Can't say I'd be able to do the same nowadays on modern Android with all the forced app killing and stuff, as well as Google Assistant being a massive downgrade (believe most useful actions on a smashed device would require unlocking, and on-screen confirmation)
This is what I thought I could do with my old devices, an S4 and an S5, but shortly after moving my data to each upgraded device the internal EMMC failed on each.
The s4 powers on into some OEM flashing mode (nothing on the screen, just appears as a Qualcomm something when plugged into usb), and the S5 shows this horror inducing message
Spoiler