Yes, a two-year gap between 11th and 12th standard will not affect your eligibility for NEET 2025. The National Testing Agency (NTA), which conducts NEET,  does not have any restrictions on gaps between schooling as long as you meet the educational qualification requirements.

You must have passed the 10+2 level examination with Physics, Chemistry, and Biology (or Biotechnology) as elective subjects.

You must have obtained a minimum of 50% marks in Physics, Chemistry, and Biology (or Biotechnology) taken together in the 10+2 level examination (or an equivalent examination) for the General category. The minimum marks requirement is 45% for Other Backward Classes (OBC), Scheduled Castes (SC), and Scheduled Tribes (ST) categories.

Since you passed your 12th in 2020 with the required subjects and (presumably) marks, a two-year gap will not affect your eligibility for NEET 2025.

https://medicine.careers360.com/download/ebooks/neet-syllabus-for-physics-chemistry-and-biology

I hope it helps!