From Pearson Edexcel – A Level Further Mathematics Topic Tests. These formed part of the summer 2022 support and use questions taken from past papers, SAMS, Specimen and mock papers. Tests are available in both Word and pdf format for Papers 1 and 2 (9 tests), and Papers 3A (7 tests), 3B (8 tests), 3C (5 tests), and 3D )5 tests.
These tests follow a similar format to the A Level Mathematics Topic Tests described in this post, Mathematics Worked Examples – A Level.
The first test in the Paper 1 and 2 pack for example is on Proof, 7 questions provide comprehensive coverage of Proof.
The following resources may be useful if you are searching by topic for Further Maths:
AQA Topic Tests for Maths and Further Maths
From Physics and Maths Tutor – see Maths Revision which includes GCSE, Maths, Further Maths and Internation legacy questions by topic.
From ALevelMathsRevision.com Further Maths Exam questions by topic. The questions are legacy questions but are chosen for relevance to the new specification.