I have the Windows notification yes. I have 2 results :
1- If I'm with the tablet on --> Device Manager sees Lenovo Tab 8 --> But no fastboot devices
2- If i'm in Fastboot mode --> Devicee Manager sees Android --> But no fastboot devices
In any cases, I cannot see the tablet with fastboot !
Edit : Tested several cables, several PCs. I'm on W11.
Does that fastboot exe must be in specific folder ? I make run cmd as administrator in the folder, but he never sees the tablet...