When using Foundation it has an option to redirect older versions of IE to an alternative page that you can build using old fashioned methods that basically predate responsive websites. It’s a good idea, but increasingly less relevant as time goes by, since the same users are probably seeing problems at most sites they visit now. It’s worth remembering that Microsoft dropped all support some time ago https://www.microsoft.com/en-gb/WindowsForBusiness/End-of-IE-support
I think you really need to know what sort of visitors your website typically receives and take a decision from there, since global statistics appear to be all over the place depending on where you search. Personally I am quite happy to use svg files where suitable.