Career change concerns in my 40s...

I am 41 years old, working as a team leader in a non-development, liberal arts role at a foreign company. I recently went through a job change process, and the reference check and compensation negotiations are complete, with the start date already confirmed.
Since this is my fourth career move, I am being very cautious. Especially as I have entered my 40s and am expecting my second child, there are many factors to consider beyond just salary or conditions like before.
First, my primary reasons for moving are:
1. Expanding work scope through new experiences
: Up until now, I have been able to achieve good results by utilizing my experience, but I felt that to become a senior leader, I need to learn and experience different environments and larger organizations. Because there aren't many human resources in Korean organizations themselves, there is a lack of people to learn from around me. I am contemplating whether, starting from my early 40s, I should experience more diverse industries, organizations, and a larger scope to grow into a leader who can build and operate an organization, rather than just performing my current role well.
2. Improved compensation
: My career path has been Private Sector -> University Staff -> Foreign Company -> Foreign Company. When I moved from university staff back to the private sector, my compensation was reset to a lower level compared to my peers, but it has now stabilized to some extent.
First, my current compensation is approximately 90 million KRW (total package).
- I am working as a team leader and am part of a global team, so my manager is American. We have a good relationship, and they evaluate me very highly. Before I gave my notice, they even mentioned a Regional Manager role for my next position during this year's mid-year review (personally, I don't see any candidates below me who could challenge for it yet).
- I have worked here for a little over two years, and because they value me, I have received good compensation with a base salary increase of about 15-20% over those two years.
- It is a semiconductor-related company, and revenue is expected to more than double within 5 years through new and existing businesses.
- I am leading a new business project and receiving various opportunities for experience.
- Good work-life balance; I can control my hours through a flexible working system.
- After I gave my notice, I received a counter-offer: a 25% increase over my current base salary plus a promotion, with a contract annual salary of 94 million KRW effective September 1st..
The new company
- It is an SK subsidiary; I am unsure of the bonus scale (probably 10-15%?), and the contract annual salary is 89 million KRW.
- I will be working as a team leader.
- It is a company related to new business and AI infrastructure; since it hasn't been established for long, stability is lower.
- Good welfare; basic reviews on sites like JobPlanet say the work-life balance is good and the ratings are not bad.
- I don't know the rest since I haven't been there.
At my current company, I am already receiving high evaluations, there is potential for role expansion, and I have even received a counter-offer. Looking objectively at the conditions, there doesn't seem to be a huge reason to leave.
On the other hand, I feel that if I don't experience a new industry and business and take on a wider scope now, while I am a team leader in my early 40s, my future career might become narrow within my current field and organization.
- Moving up to the next level stably at my current company.
- Experiencing a wider scope in a new industry and business despite the uncertainty, to expand career options in the long term.
My biggest concern is which side will be more advantageous for my career after my 40s.
If you have experienced a career move at a similar seniority or age, or if you have experienced a career as a team leader/manager after your 40s, I would love to know what criteria you used to make your decision.