I have one cycling jersey and one two lycra shorts, never felt the need for cycling specfifc gear other than that, just general outdoor gear.
Workware shorts (dickies, screwfix own brand, whatever is on offer) in the summer, ronhill tracksters or workware shorts and dhb tight in the winter, usually jsut the tracksters. Add bibs or padded shorts if I’m doing a particularly long ride and have not ridden for a while.
On top bamboo tshirt of choice or polysomthing t shirt + cheap soft shell and or thin chairty shop wool jumper + or wind proof gillet + or altura waterproof top.