Using undercoats/primers/sealers as top coats

Hi there, this is my first time posting so please be kind! I've developed a bit of a hobby painting up old furniture have & happened to have acquired an enormous range of Solver water based sealer/undercoats and primers from an old house painting business. So my question is, can I use these paints on my furniture pieces, skip the top coat, seal it (I'm using Porters Clear Sealer) & be done? I understand the sealers/primers etc aren't designed to be used as a top coat and can attract fingerprints and dirt more easily, but I was hoping a few coats of clear sealer would remedy that? My other concern is that the paint will yellow or worse (??) over time.

I appreciate any advice. Thanks!

V