Since you have a 2021 with the round SR-5 type grill logo you will need a specific adapter kit only sold by 2020-2022 Toyota 4runner Off-road Limited Nightshade Sport | Etsy
And you need the specific light kit from Amazon that they specify.
This thread wins the “thread that delivers” award. Every time I open it there is minimal BS just a jaw dropping display of pic heavy mechanical madness. I actually hate that my post disrupts that flow.