Let's say I'm 45 like you, but I cut my CV to include only the last 13 years (because I like to keep my CV one page only and because what I did 20 years ago is kinda irrelevant by now). On my CV I don't put pictures nor date or birth (this is common in many European countries). So, they interview me: in the video-call they cannot tell if I'm 45 or 35 (I have good genes), so they like me and proceed to send me the contract. They will only notice my age (if any) when they examine my national id or passport. But by then it would be too late for them (besides, they liked me, so I guess my age is irrelevant).
In reality, I'm 37 (but I look like if I'm 27), and I never ever have included my age or date of birth on my CV. I have cut some stuff from my CV that is not relevant to the roles I apply (e.g., graduation dates), and very old roles at the beginning of my career are not included on my CV anymore. So far nobody has ever asked my age.