At the start of my career, I've struggled a lot to stay up to date with everything that goes on in the front-end. I still do. Less though.
The nature of tech in general is it's fast-paced and it's unfair to expect anyone to know everything, even if it's just one field of expertise.
I believe knowledge sharing is quite a sustainable approach to learn stuff. It's more natural and if done during working hours, it checks all the boxes. But wait. What do I mean by "during working hours"?
Book a regular meeting with the engineering team, share news and tips in a group chat or channel dedicated to knowledge sharing. Find a way to encourage this mindset in the corporate environment. It's hard to see the value before actually doing it. What I've found is this helps people not feel stale in their career and they tend to subconsciously feel an urge to share something as soon as they learn about it. Such a culture indirectly helps the company out as well since its employees are more informed about their craft, hence have the ability to make better technical decisions. Additionally, knowledge sharing indirectly forms a stronger bond between colleagues who now feel comfortable asking for help from someone they feel they know.
As people take on more responsibilities in their personal lives, they need to choose where to put their attention. It's completely reasonable not to have time to maintain your career growth outside of working hours. So far, I've presented a few topics during engineering knowledge transfer sessions, and attended a lot more. I've started to get noticed more and more by upper management as well due to my contributions. Even if that's not the reason why I'm doing it, it's still gratifying. Now, I just hope for the best at the end of year appraisal meeting!
Jokes aside, knowledge sharing is an investment. It does take a little time and energy that you consistently need to spend but it's way better than the alternative in the grand scheme of things.