Yes, it is. If you are from Austria, Belgium, Hungary, Germany, Greece, Denmark, Ireland, Iceland, Spain, Italy, Cyprus, Latvia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, North Macedonia, Slovakia, Turkey, Finland, France, Croatia, the Czech Republic and Sweden, the application fee amounts to £645 that is £55 less than for nationals of other countries. However, this discount is applicable only to the main applicant. All dependants pay full fees.
After Brexit, the EU citizens enjoy no special benefits concerning relocation to the UK.