Update: You need to use Right Alt key + 5 to type € sign using this layout on Generic 105-key international keyboard (standard keyboard).
As for non standard keyboards, which are used on some notebooks, it will not be easy to help you, since we do not have this notebook.
At least you could write the exact model name of your notebook, like Lenovo Legion 5 15ACH6 82JW008TPB, but not just Lenovo Legion.
Anybody who can help me?
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