What to do with this scraggly Hebe

Hello
I have this shrub; it has growth on the ends but is very leggy (?).
I have read various things - they don’t like to be cut heavily; or trim above growth and it will come back...
What should I do? It’s a mature shrub with a low spread. It’s planted towards the back, and will leave a large gap if I remove.
My garden faces north-west, but it is not in a shady spot.
Thank you!

I have this shrub; it has growth on the ends but is very leggy (?).
I have read various things - they don’t like to be cut heavily; or trim above growth and it will come back...
What should I do? It’s a mature shrub with a low spread. It’s planted towards the back, and will leave a large gap if I remove.
My garden faces north-west, but it is not in a shady spot.
Thank you!

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Thank you josusa47 and WillDB
Much appreciated advice.