Very weak wifi strength signal in Linux Mint and PopOs

Hi, I have run my old laptop Dell G3 15 3590 and have very weak wi fi connection.

I haven't use it for awhile but I rember everything was fine. On the other side I have 2 other computers; including Fedora on old thinkpad and on both there is no connections problems at all - they have very strong signal.

But on my Dell, as I said the connection signal strenght is very bad.

I have tried turning power mode off and it doesn't work (had Linux MInt on this time)

Made a backup and installed PopOs, and there still the same problem.

Any idea why it has working correctly some time ago but now there are signal strength problems?

https://preview.redd.it/hzhpcfsygote1.png?width=1057&format=png&auto=webp&s=983cacd028cfd343092747e854126daf56205706