Running with Plantar Fasciitis & footwear

So I started with Plantar Fasciitis in both feet earlier this year and used running and cycling to finally lose weight and get in shape...ish. My right foot is back to normal but still dealing with pain in my left foot.

While regular running seems to be helping me, I ran my second 5k race and had to limp for the next 12 hours in excruciating pain. It seems the intensity is what makes running go from helpful to counterproductive.

I've seen running shoes and fitting services advertise their consideration for plantar fasciitis and wondering what this exactly entails. As far as I know the issue is mostly connected to my calf and lower leg and I never have any discomfort while actually running. Do these shoes do anything besides having more cushioning for the heel? I'm in Hoka Clifton 8's and can't imagine any more cushioning.

Does anyone have experience with buying shoes that "address" this or have any other insights?

Obviously seeing a doctor is the most important factor but I'm curious what experiences people have outside of that.