Inquiry regarding network frequency band compatibility for Realme GT neo5 240W in Marquette University area, in Milwaukee

I recently arrived in the United States from China and am currently using T-Mobile, but I am only able to connect to a 2G network. The T-Mobile customer service suggested that this may be due to unsupported network frequency bands. Therefore, I would like to confirm whether my phone's supported bands are compatible in the vicinity of Marquette University in Milwaukee. Below are the network frequency bands supported by my phone, the Realme GT Neo5 240W:

2G:

GSM: 850/900/1800/1900

CDMA BC0

3G:

WCDMA: B1/B5/B6/B8/B19

4G LTE:

TDD-LTE: B34/B38/B39/B40/B41

FDD-LTE: B1/B3/B5/B7/B8/B18/B19/B26/B28A

5G:

NSA: n1/n3/n41/n77/n78

SA: n1/n3/n5/n8/n28a/n40/n41/n77/n78

Could you please confirm whether these bands are supported in the area around Marquette University, Milwaukee? Thank you for your assistance.