Box shadows not working as expected in Safari

**Environment:** Safari browser or old Google Chrome browser (for example on iphone 7)
**Reproducible:** always

**Steps to reproduce example 1**
1. Visit main page
2. Scroll down to block with "задонатити" btn
3. Shadows are weird

**Steps to reproduce example 2**
1. Visit contact-us page
2. Hover on social media icon (ex. tiktok)
3. Shadows are weird

**Actual result**
Broken (not properly rendered shadows)

**Expected result**
Normal shadows as in modern Google Chrome browser