Is bankai over used yes or no

I want to see others' opinions on this as for me I fully believe it is mainly for certain characters like toshiro or renji heck I it I had to Google toshiro's shikai because I nearly forgot he had one that's how many times I saw his bankai and he is also supposedly an kido master but like I only saw him use it once? Twice? Renji and byakuya are two other examples tho byakuya gets a slight as he spams kido. What are your guys' thoughts on this