everything held online and accessed via a secure website
HR did this to us as well. Their chosen provider (ADP) provides payslips and P60 (end of year earnings statements) through a secure website.... that requires IE, and for you to install ActiveX controls in IE.
They do provide an app for phones that allows you to get them in PDF, but meh. Since work provide laptops for everyone, there isn't considered to be a barrier to access and is 100% legit in the UK, sadly.