Got an offer with around 20% hike

My current CTC is 7.7 with around 2+ YOE. Received an offer with a sort of startup owned by a private equity that is giving a 20% hike + bonus not included in the CTC. My current role sucks, there's not any coding involved, it's mostly just using a third party software to make small changes here & there and I don't think it will help me in the future, though the work culture and perks are really good (hybrid mode lots of holidays barely 4-5 hours of work). The new role will include coding which is what I want to do and from the discussion I had with the hiring team it will be a challenging role compared to my current. However, this will be my 3rd company and I'm not sure how recruiters will look at it since I am currently working in legacy tech and want to switch to a different stack in the future and I will probably have to stay at least a year here. The new company also mentioned that they use tracking software only while you WFH though you can do WFO too which is a red flag for me. I'm really confused. The hike isn't much but the extra money will help but the lack of the freedom while WFH and the long hours are making me think and the fact that I would have to stay atleast a year in this role to not be seen as a serial hopper to recruiters when I want to switch tech stack. But then again I don't see any future growth in my current org even with all its perks and it just feels like im rotting away my early 20s not doing any "meaningful work" or gaining any skills.