i dont have this mtb model, but i have Santic flat pedal 'lockless/lockfree' ones that looks like roadbike shoe.
Fitting wise theyre like Adidas Adizero running shoe fitting. kinda on narrow side. the flat model only came in reinforced plastic midsole, kinda stiff vs other aliEx of similar style shoe(bought one to compare, sold it n keep only Santic), n it has the X-plastic plate under arch to mitigate arch flexing.
For flat pedal roadie, imo Santic is the best out there in this segment for stiffness pwr xfer. i hope one day they consider hybrid carbon midsole, tho this is super niche market