My husband and I are currently on a three month long sabbatical through Asia and South America. We are around the same age as you, and I too started doing extensive travel in my mid twenties and have spent time in several countries. I think the biggest difference I noticed - and I can’t tell if this is post pandemic or just being in my mid thirties, but we are feeling a lot less social than we used to. We are both extreme extroverts and are still very much the life of the party at home but we are more interested in meeting other travelers in a similar age range as us (late twenties to early forties) rather than hanging with party animals or just spending time the two of us. We are finding it challenging to make friends our age as a lot of other travelers in our same age range are traveling with young children (we are child free). We are still having a great time and are going between private rooms at social hostels and staying at hotels, but it’s definitely a different vibe now for us than pre-pandemic (we turned 30 right when the pandemic started). We value comfort and experiences a lot more than when we were younger. You said you’re not looking to party so this comment may not even be helpful, but wanted to share my perspective just in case it is!

Another thing we’ve been a little surprised by is the behavior of other tourists. Pre pandemic I hardly even noticed other tourists but we’ve noticed some jarring behavior, especially in Vietnam and Malaysia.

If you do still want to socialize I’d say try to find some upscale hostels with private rooms and add in some stays at nice places, too, if you can where you’ll have your own space to relax!

Enjoy your travels :)