I added GIF87a image capability to software I was working on in like 1988 and back then everyone pronounced them JIF images incl on CompuServe where they came from, and as far as I’m concerned the only thing a hard-G pronunciation signifies is that someone’s a latecomer.
The tables will turn, have no fear. By 2040 or 2050 when net-newbies pronounce Google as “go-oh-gle” and Apple as “epp-leh” and TikTok as “teek-took,” you cranky curmudgeons you will finally understand.
Hopefully.