I'm wondering about 5, thunderbolt. I now use a lenovo X1 thinkpad and use an external GPU to drive 2 4K monitors. The internal Intel UHD 620 just can't handle

I'm wondering about 5, thunderbolt. I now use a lenovo X1 thinkpad and use an external GPU to drive 2 4K monitors. The internal Intel UHD 620 just can't handle. Is the intel Xe graphics enough to handle this? If so, thunderbolt would be a nice to have, but not a requirement.