it’s a personal preference so i don’t list it. Strength 1 gives more style accurate, but looks worse because the sources images are almost always flat color, 2d show screencaps. I could fix this by running image to image after to give it more detail and higher quality while keeping the original style, but i like to post example images that look good with as few steps as needed to show what the lora can do. .8 gives a nice balance that looks good with no extra work. plus it’s model dependent, are you using other lora, etc. Most people just say “use .7-1” which isn’t really helpful, as that's what everybody uses anyway.

the only time strengths are helpful are with sliders or other loras designed to be used at slow strengths. character lora’s are pretty standard and everyone should know how to use them by now