Can I use GEO IP redirection for only a portion of my website without penalties?

Hello,

Are there penalties for using GEO IP based redirection for a portion of a website? E.g. the core part of the website is redirected to a landing page based on IP where the user is directed to their country site while the blog (hosted on a subfolder on the same domain) is accessible from anywhere.

abc.com (depending on location you can either access directly or are taken to abc.com/landing-page to choose your region) but abc.com/blog is accessible from any location with no redirect and only when you click on a abc.com/url will the redirect execute.

Can this also impact paid advertising/ads being rejected due to this set up, even if campaigns don't link to these pages?

Thank you, K