Which one to pick, major bank vs Mid size tech company

Hey guys, I’ve been getting many great advice from this sub so here I am posting again.

Can’t believe this, but after being laid off for 5 months, I got two offers to pick from all received within the same week.

Offer A is from a major bank, 40% increase TC from my previous role, great stability, I like the team and really nice manager. They offer clear track to senior within 1-2 years. Requires 1 day in office every week, downside is things move slow, legacy tech, I need to be on call rotation and some DevOps work.

Offer B is from a mid sized tech company, they are still Nasdaq listed, but not as reputable as the former. They offer 20% more TC, great tech stack, more exciting projects and I’ll get to work with the CTO directly. Also they are fully remote and allows 90 days remote work from another country, and would allow me to move away from the East Coast to the West Coast where I’ve always wanted to move to but got tied to my job. Downside is they rejected me three weeks ago after the final round interview, and now wants me to join cuz the other guy they made offer to backed out, and a lot more often layoff than the bank from online reviews.

I already signed with the bank and is doing background checks in progress when offer B arrived, which one do you think I should pick? Any advice is welcome!