Unless you are a massive Tier Point runner, I don’t think you can just chase GGFL, different of course if you naturally accrue those TPS as part of your job/genuine leisure travel.
Im about to hit GFL (literally a few hundred away) but in my mid forties, with a young family, I’m genuinely happy that I travel less - I’ve just hired someone to look after the Asia offices that previously gave me 3 -4 K TPS a year, so I will be fine on the 3500 a year to give me all the benefits that I need (GGL plus GUF x4).
With First Wing, I don’t particularly need the CCR any more for my CE flights, as my North American flights are in F so I can use the CCR room in JFK, which is a nice to have.
I’d expect to be working at level of intensity for the next 5 years or so, and then turn down the throttle. Perhaps then I may become a TP runner. I guess it’s just up to your personal circumstances.