That is normal AFAIK. We strip our hair's natural defrizzing agent/ 'conditioner' (sebum) when washing so need to replace that with something. You also have long hair, hair that is a couple of years old wouldn't see much sebum and has lost a lot of its protective cuticle through normal weathering mechanical damage so certain products and ingredients help patch repair that.
2a-2c, medium texture, porous/ colour treated. Three years CG. Past bra strap length heading for waist.

CO-wash: Inecto coconut/ Elvive Volume Collagen
Treatments: Komaza Care Matani, coconut/ sweet almond oils, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss Ultimate Volume, various Elvive
Styler: Umberto Giannini jelly, Boots Essentials gel
Flour sack towel, pixie diffuse or air dry.
Experimenting with: benign neglect