FYI, usually if you own the stock and they need shares to borrow they will contact you. If you never get a call or email, you 1. Are using margin or 2. Don't own enough for them to want to borrow from you.
If you are using margin, the broker will likely already be using your shares. As for owning enough shares, they typically don't want to deal with the paper work of setting up SLP accounts for 100 shares or 1000 shares. They much rather approach people with larger positions because that's just less paperwork they need to do.
Coming from experience, I've lent LCID out in the past but decided it wasn't worth it and told them I no longer wished to let them borrow my shares. I never once called them, in fact they called and emailed me multiple times.