Let’s take the word “Kassierer”, which is German for cashier. Kassierer is the male form, Kassiererin is the female form.
The idea of the Gendersternchen is that you write Kassierer*in to indicate that it means either male or female. I believe “Sternchen” (“little star”) translates to asterisk.
I’m in the same boat, with an 3700X. Upgrading my Vega 56 will be the first thing and I’m sure that the CPU will still be just fine for that. 1-2 years after the GPU, I’ll probably invest in a new platform.