I've got a couple of friends that left London to go back to Poland during covid. They first continued to work remotely, but ended up switching to Polish companies because the pay was better.

I switched from a Polish company to a German one (both remote), but my pay is more or less the same. The difference is that in Poland to get that money I have to be a "top performer" with a lot of stress and not a lot of time, while in Germany I can be just a mid dev.

Yes I think salaries are still a bit lower, but the gap has closed a lot. And cost of living is lower in Poland plus there is some tax break for self employed contractors that means you only pay ~20% tax compared to ~40% in the UK.

With those two factors you could easily end up better off overall, especially if you have kids

The kids factor is even bigger if you move back close to relatives. The ability to drop your children at grandma's instead of paying for childcare is an easy 1k a month you're saving.

I wtedy przynajmniej babcia będzie szczęśliwa pilnować dzieci.

Daycare is completely free in Poland since 2024 (you need to submit an application to ZUS, but there are no limits, it's always accepted), even the private ones. You only pay separately for food (10 zł per day the child is actually attending to the daycare).

Yes Poland in particular is booming. It’s an outsource destination that’s higher skill and less risk than India.