A TXT record is an optional record that conveys certain text information created by the domain administrator.
Such records can be used for some services (for example, proof of domain ownership in Google, Yandex etc.) or to generate a DKIM signature, configure a policy SPF and DMARCwithout which mail can get into spam.
The presence of TXT records does not affect the operation of the domain in any way and does not change other records.