My initial step is to get to my office(1.5 hour train commute one-way) for two days of the week.
I would like to know how others in similar work patterns like myself handle it?
The trick is to seek out people whom you enjoy spending time with in social settings. This can be e.g. through a gym, arts&crafts classes, uni courses, volunteer activities, sport clubs, nature clubs, cooking classes board game card chess d&d groups ... whatever your fancy.
Even if you are more introvert you will find these environments very welcoming.
Having a social life without the everpresent undertones of office politics and policies can be very invigorating
Point is you are seeing them repeatedly so friendships develop.
Especially good are retreats/activity weekends because you will spend concentrated time with people.
Good luck
After two years of almost permanently working from home, it's grown to the place where the whole team just hangs when they're working to have someone to talk to when sitting alone at home, but also to ask serious questions, and equally so to talk non-work related banter from time to time.
Since the last few releases of Jitsi, we're also using breakout rooms to discuss some more in-depth things without annoying the rest of the team. Previously, those people would move to another meeting and come back when they're done. Now, they can stay in the one permanent meeting, and the rest can see them sitting in a breakout room, and go in and ask them when something urgent is going on.
I honestly think this approach has kept the whole team sane during 2+ years of full time working from home.
I have also recently moved to a different country, so in reality, I don't have many friends here to begin with.
Luckily for me, I've never really felt the need as I am pretty active online anyway and never have a moment where I'm not chatting with someone or have someone to chat with. IRL I meet with friends once a week, once every two weeks for some beers and other related activities. It's enough for me.
I think, if you can't get the social interaction you need from work then it might be worth looking into any sort of social clubs and whatnot that you could take on during the weekend. Photography, painting, whatever you fancy there are sure to be clubs in your city :)
Do you have friends outside of the office? Favorite places to eat and talk? Meetups you can go to meet and hang and talk about things you like? A conference "hallway track" to meet like minded technical people? Hell, Bumble even has a bff feature if that works for you. When I moved to a new city, I met some of my current best friends through a date that didn't pan out. It was scary to meet a total stranger when I didn't have friends in the city, but people are generally nicer than you might think.
I hope this helps at least a bit.
Either way, whether you are in some tiny village or the big city, get out of your flat and down the street - to the pub, the gym, the church, etc. Whatever your thing and whoever your people are, they are out there somewhere and it's just a matter of figuring out where to find them. Yes you have to put yourself out there and that can be hard (I'm horribly shy and introverted myself) but that's the cost to connect. I'm wondering - even though Dutch people are wonderfully poly-linguistic, I'm gathering that you might be foreign and I'm wondering if you are concerned about your language skills? Is that feeling like a barrier for you? Best way to improve on that is get out and start interacting.
Now I've switched jobs. I work at company that has hybrid work policy. This was one of the main reasons for the switch - to be among the people again.
I go to office at least once a week.
Unless you're applying yourself to some great quest, work is a secondary task in life. You've got this backwards.
What do you want from life? Start at the top of that list and work downwards.
So if you moved to the Netherlands just for a good job, then perhaps consider moving back to wherever is “home” and continuing to work from there. It might take a little negotiation but it would be worth it for your health and happiness.
Almost any local bar (not a touristy place) can serve the need of "social interaction". The greatest thing is what you actually isn't needed to drink a lot or anything at all.
It's not a universal solution of course but being able to confirm what you are actually can interact with peoplr, even ones you never seen before (or after), greatly helps to scrath the social itch.