Based on my knowledge from August 2023, 5G rollout and adoption has been steadily progressing around the world. Here are some key points about the 5G landscape:

• 5G networks have been commercially launched in many major markets, including the United States, South Korea, China, and parts of Europe. However, full nationwide 5G coverage is still ongoing.

• As of August 2023, 5G subscriber numbers globally were estimated to be around 1 billion, with the highest adoption rates in markets like South Korea, China, and the US.

• Ongoing challenges include issues around spectrum allocation, infrastructure deployment, and device affordability that are slowing the pace of 5G rollout in some regions.

• Industry analysts project that by 2025, 5G will account for around 25-30% of global mobile subscriptions as coverage and device availability continue to improve.

• 5G is expected to enable new use cases in areas like remote healthcare, industrial automation, and autonomous vehicles as the technology matures.

However, given that my knowledge is current only up to August 2023, I would recommend checking for any more recent updates on the 5G landscape, as the situation may have evolved further over the past year. Does this help provide an overview of where 5G stood as of my last knowledge update? Let me know if you have any other questions!